diff --git a/commitlint.config.js b/commitlint.config.js
index d5861f6b..6da72baa 100644
--- a/commitlint.config.js
+++ b/commitlint.config.js
@@ -44,6 +44,7 @@ module.exports = {
         "workflow",
         "types",
         "release",
+        "merge",
       ],
     ],
   },
diff --git a/src/components/Tags.vue b/src/components/Tags.vue
new file mode 100644
index 00000000..90fb670c
--- /dev/null
+++ b/src/components/Tags.vue
@@ -0,0 +1,87 @@
+<!-- Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements.  See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to You under the Apache License, Version 2.0
+(the "License"); you may not use this file except in compliance with
+the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. -->
+<template>
+  <span :class="vertical ? 'vertical' : 'horizontal'" v-for="tag in dynamicTags" :key="tag">
+    <el-tag closable :disable-transitions="false" @close="handleClose(tag)">
+      {{ tag }}
+    </el-tag>
+  </span>
+  <el-input
+    v-if="inputVisible"
+    ref="InputRef"
+    v-model="inputValue"
+    class="ml-5 input-name"
+    size="small"
+    @keyup.enter="handleInputConfirm"
+    @blur="handleInputConfirm"
+  />
+  <el-button v-else size="small" @click="showInput"> + {{ text }} </el-button>
+</template>
+
+<script lang="ts" setup>
+  import { nextTick, ref } from "vue";
+  import type { PropType } from "vue";
+  import { ElInput } from "element-plus";
+
+  /*global defineProps, defineEmits*/
+  const emits = defineEmits(["change"]);
+  const props = defineProps({
+    tags: {
+      type: Array as PropType<string[]>,
+      default: () => [],
+    },
+    text: { type: String, default: "" },
+    vertical: { type: Boolean, default: false },
+  });
+  const inputValue = ref("");
+  const dynamicTags = ref<string[]>(props.tags || []);
+  const inputVisible = ref(false);
+  const InputRef = ref<InstanceType<typeof ElInput>>();
+
+  const handleClose = (tag: string) => {
+    dynamicTags.value.splice(dynamicTags.value.indexOf(tag), 1);
+  };
+
+  const showInput = () => {
+    inputVisible.value = true;
+    nextTick(() => {
+      InputRef.value!.input!.focus();
+    });
+  };
+
+  const handleInputConfirm = () => {
+    if (inputValue.value) {
+      dynamicTags.value.push(inputValue.value);
+    }
+    inputVisible.value = false;
+    inputValue.value = "";
+    emits("change", dynamicTags.value);
+  };
+</script>
+<style lang="scss" scoped>
+  .input-name {
+    width: 300px;
+  }
+
+  .vertical {
+    display: block;
+    margin-bottom: 5px;
+  }
+
+  .horizontal {
+    display: inline-block;
+    margin-right: 5px;
+  }
+</style>
diff --git a/src/components/index.ts b/src/components/index.ts
index 607c7ce7..2992ee49 100644
--- a/src/components/index.ts
+++ b/src/components/index.ts
@@ -21,6 +21,7 @@ import Selector from "./Selector.vue";
 import Graph from "./Graph.vue";
 import Radio from "./Radio.vue";
 import SelectSingle from "./SelectSingle.vue";
+import Tags from "./Tags.vue";
 import VueGridLayout from "vue-grid-layout";
 
 const components: Indexable = {
@@ -31,6 +32,7 @@ const components: Indexable = {
   Graph,
   Radio,
   SelectSingle,
+  Tags,
 };
 const componentsName: string[] = Object.keys(components);
 
diff --git a/src/hooks/useExpressionsProcessor.ts b/src/hooks/useExpressionsProcessor.ts
index 6855696f..3ddf8662 100644
--- a/src/hooks/useExpressionsProcessor.ts
+++ b/src/hooks/useExpressionsProcessor.ts
@@ -15,13 +15,14 @@
  * limitations under the License.
  */
 import { RespFields } from "./data";
-import { ExpressionResultType } from "@/views/dashboard/data";
+import { EntityType, ExpressionResultType } from "@/views/dashboard/data";
 import { ElMessage } from "element-plus";
 import { useDashboardStore } from "@/store/modules/dashboard";
 import { useSelectorStore } from "@/store/modules/selectors";
 import { useAppStoreWithOut } from "@/store/modules/app";
 import type { MetricConfigOpt } from "@/types/dashboard";
 import type { Instance, Endpoint, Service } from "@/types/selector";
+import type { Node, Call } from "@/types/topology";
 
 export async function useExpressionsQueryProcessor(config: Indexable) {
   function expressionsGraphqlPods() {
@@ -312,3 +313,88 @@ export async function useExpressionsQueryPodsMetrics(
 
   return expressionParams;
 }
+
+export function useQueryTopologyExpressionsProcessor(metrics: string[], instances: (Call | Node)[]) {
+  const appStore = useAppStoreWithOut();
+  const dashboardStore = useDashboardStore();
+
+  function getExpressionQuery() {
+    const conditions: { [key: string]: unknown } = {
+      duration: appStore.durationTime,
+    };
+    const variables: string[] = [`$duration: Duration!`];
+    const fragmentList = instances.map((d: any, index: number) => {
+      let serviceName;
+      let destServiceName;
+      let endpointName;
+      let serviceInstanceName;
+      let destServiceInstanceName;
+      let destEndpointName;
+      if (d.sourceObj && d.targetObj) {
+        // instances = Calls
+        serviceName = d.sourceObj.serviceName || d.sourceObj.name;
+        destServiceName = d.targetObj.serviceName || d.targetObj.name;
+        if (EntityType[4].value === dashboardStore.entity) {
+          serviceInstanceName = d.sourceObj.name;
+          destServiceInstanceName = d.targetObj.name;
+        }
+        if (EntityType[2].value === dashboardStore.entity) {
+          endpointName = d.sourceObj.name;
+          destEndpointName = d.targetObj.name;
+        }
+      } else {
+        // instances = Nodes
+        serviceName = d.serviceName || d.name;
+        if (EntityType[4].value === dashboardStore.entity) {
+          serviceInstanceName = d.name;
+        }
+        if (EntityType[2].value === dashboardStore.entity) {
+          endpointName = d.name;
+        }
+      }
+      const entity = {
+        serviceName,
+        normal: true,
+        serviceInstanceName,
+        endpointName,
+        destServiceName,
+        destNormal: destServiceName ? true : undefined,
+        destServiceInstanceName,
+        destEndpointName,
+      };
+      variables.push(`$entity${index}: Entity!`);
+      conditions[`entity${index}`] = entity;
+      const f = metrics.map((name: string, idx: number) => {
+        if (index === 0) {
+          variables.push(`$expression${idx}: String!`);
+          conditions[`expression${idx}`] = name;
+        }
+        return `expression${index}${idx}: execExpression(expression: $expression${idx}, entity: $entity${index}, duration: $duration)${RespFields.execExpression}`;
+      });
+      return f;
+    });
+    const fragment = fragmentList.flat(1).join(" ");
+    const queryStr = `query queryData(${variables}) {${fragment}}`;
+
+    return { queryStr, conditions };
+  }
+  function handleExpressionValues(resp: { [key: string]: any }) {
+    const obj: any = {};
+    for (let idx = 0; idx < instances.length; idx++) {
+      for (let index = 0; index < metrics.length; index++) {
+        const k = "expression" + idx + index;
+        if (metrics[index]) {
+          if (!obj[metrics[index]]) {
+            obj[metrics[index]] = {
+              values: [],
+            };
+          }
+          obj[metrics[index]].values.push({ value: resp[k].results[0].values[0].value, id: instances[idx].id });
+        }
+      }
+    }
+    return obj;
+  }
+
+  return { getExpressionQuery, handleExpressionValues };
+}
diff --git a/src/locales/lang/en.ts b/src/locales/lang/en.ts
index db2eb4ab..1d983f65 100644
--- a/src/locales/lang/en.ts
+++ b/src/locales/lang/en.ts
@@ -378,5 +378,9 @@ const msg = {
   menus: "Menus",
   saveReload: "Save and reload the page",
   document: "Documentation",
+  metricMode: "Metric Mode",
+  addExpressions: "Add Expressions",
+  expressions: "Expression",
+  unhealthyExpression: "Unhealthy Expression",
 };
 export default msg;
diff --git a/src/locales/lang/es.ts b/src/locales/lang/es.ts
index aa7953e6..b92ba40b 100644
--- a/src/locales/lang/es.ts
+++ b/src/locales/lang/es.ts
@@ -378,5 +378,9 @@ const msg = {
   menus: "Menus",
   saveReload: "Save and reload the page",
   document: "Documentation",
+  metricMode: "Metric Mode",
+  addExpressions: "Add Expressions",
+  expressions: "Expression",
+  unhealthyExpression: "Unhealthy Expression",
 };
 export default msg;
diff --git a/src/locales/lang/zh.ts b/src/locales/lang/zh.ts
index 430755e5..edc9a665 100644
--- a/src/locales/lang/zh.ts
+++ b/src/locales/lang/zh.ts
@@ -376,5 +376,9 @@ const msg = {
   menusManagement: "菜单",
   saveReload: "保存并重新加载页面",
   document: "文档",
+  metricMode: "指标模式",
+  addExpressions: "添加表达式",
+  expressions: "表达式",
+  unhealthyExpression: "非健康表达式",
 };
 export default msg;
diff --git a/src/store/modules/event.ts b/src/store/modules/event.ts
index ac89f648..bb6ec794 100644
--- a/src/store/modules/event.ts
+++ b/src/store/modules/event.ts
@@ -57,7 +57,7 @@ export const eventStore = defineStore({
       this.instances = [{ value: "", label: "All" }, ...res.data.data.pods] || [{ value: "", label: "All" }];
       return res.data;
     },
-    async getEndpoints(keyword?: string) {
+    async getEndpoints(keyword: string) {
       const serviceId = useSelectorStore().currentService ? useSelectorStore().currentService.id : "";
       if (!serviceId) {
         return;
diff --git a/src/store/modules/topology.ts b/src/store/modules/topology.ts
index 50bae018..74bc7e15 100644
--- a/src/store/modules/topology.ts
+++ b/src/store/modules/topology.ts
@@ -24,6 +24,7 @@ import { useAppStoreWithOut } from "@/store/modules/app";
 import type { AxiosResponse } from "axios";
 import query from "@/graphql/fetch";
 import { useQueryTopologyMetrics } from "@/hooks/useMetricsProcessor";
+import { useQueryTopologyExpressionsProcessor } from "@/hooks/useExpressionsProcessor";
 import { ElMessage } from "element-plus";
 
 interface MetricVal {
@@ -114,6 +115,16 @@ export const topologyStore = defineStore({
     setLinkClientMetrics(m: MetricVal) {
       this.linkClientMetrics = m;
     },
+    setLegendValues(expressions: string, data: { [key: string]: any }) {
+      for (let idx = 0; idx < this.nodes.length; idx++) {
+        for (let index = 0; index < expressions.length; index++) {
+          const k = "expression" + idx + index;
+          if (expressions[index]) {
+            this.nodes[idx][expressions[index]] = Number(data[k].results[0].values[0].value);
+          }
+        }
+      }
+    },
     async getDepthServiceTopology(serviceIds: string[], depth: number) {
       const res = await this.getServicesTopology(serviceIds);
       if (depth > 1) {
@@ -321,6 +332,15 @@ export const topologyStore = defineStore({
       this.setNodeMetricValue(res.data.data);
       return res.data;
     },
+    async getNodeExpressionValue(param: { queryStr: string; conditions: { [key: string]: unknown } }) {
+      const res: AxiosResponse = await query(param);
+
+      if (res.data.errors) {
+        return res.data;
+      }
+
+      return res.data;
+    },
     async getLinkClientMetrics(linkClientMetrics: string[]) {
       if (!linkClientMetrics.length) {
         this.setLinkClientMetrics({});
@@ -353,6 +373,29 @@ export const topologyStore = defineStore({
         ElMessage.error(res.errors);
       }
     },
+    async getLinkExpressions(expressions: string[], type: string) {
+      if (!expressions.length) {
+        this.setLinkServerMetrics({});
+        return;
+      }
+      const calls = this.calls.filter((i: Call) => i.detectPoints.includes(type));
+      if (!calls.length) {
+        return;
+      }
+      const { getExpressionQuery, handleExpressionValues } = useQueryTopologyExpressionsProcessor(expressions, calls);
+      const param = getExpressionQuery();
+      const res = await this.getNodeExpressionValue(param);
+      if (res.errors) {
+        ElMessage.error(res.errors);
+        return;
+      }
+      const metrics = handleExpressionValues(res.data);
+      if (type === "SERVER") {
+        this.setLinkServerMetrics(metrics);
+      } else {
+        this.setLinkClientMetrics(metrics);
+      }
+    },
     async queryNodeMetrics(nodeMetrics: string[]) {
       if (!nodeMetrics.length) {
         this.setNodeMetricValue({});
@@ -369,6 +412,28 @@ export const topologyStore = defineStore({
         ElMessage.error(res.errors);
       }
     },
+    async queryNodeExpressions(expressions: string[]) {
+      if (!expressions.length) {
+        this.setNodeMetricValue({});
+        return;
+      }
+      if (!this.nodes.length) {
+        this.setNodeMetricValue({});
+        return;
+      }
+      const { getExpressionQuery, handleExpressionValues } = useQueryTopologyExpressionsProcessor(
+        expressions,
+        this.nodes,
+      );
+      const param = getExpressionQuery();
+      const res = await this.getNodeExpressionValue(param);
+      if (res.errors) {
+        ElMessage.error(res.errors);
+        return;
+      }
+      const metrics = handleExpressionValues(res.data);
+      this.setNodeMetricValue(metrics);
+    },
     async getLegendMetrics(param: { queryStr: string; conditions: { [key: string]: unknown } }) {
       const res: AxiosResponse = await query(param);
 
diff --git a/src/types/components.d.ts b/src/types/components.d.ts
index cae7912a..7e641d1c 100644
--- a/src/types/components.d.ts
+++ b/src/types/components.d.ts
@@ -36,6 +36,7 @@ declare module '@vue/runtime-core' {
     ElSwitch: typeof import('element-plus/es')['ElSwitch']
     ElTable: typeof import('element-plus/es')['ElTable']
     ElTableColumn: typeof import('element-plus/es')['ElTableColumn']
+    ElTag: typeof import('element-plus/es')['ElTag']
     ElTooltip: typeof import('element-plus/es')['ElTooltip']
     Graph: typeof import('./../components/Graph.vue')['default']
     Icon: typeof import('./../components/Icon.vue')['default']
@@ -45,6 +46,7 @@ declare module '@vue/runtime-core' {
     RouterView: typeof import('vue-router')['RouterView']
     Selector: typeof import('./../components/Selector.vue')['default']
     SelectSingle: typeof import('./../components/SelectSingle.vue')['default']
+    Tags: typeof import('./../components/Tags.vue')['default']
     TimePicker: typeof import('./../components/TimePicker.vue')['default']
   }
 }
diff --git a/src/views/dashboard/configuration/widget/metric/Index.vue b/src/views/dashboard/configuration/widget/metric/Index.vue
index 5882f67e..ac316047 100644
--- a/src/views/dashboard/configuration/widget/metric/Index.vue
+++ b/src/views/dashboard/configuration/widget/metric/Index.vue
@@ -160,7 +160,7 @@ limitations under the License. -->
     },
   });
   const dashboardStore = useDashboardStore();
-  const isExpression = ref<boolean>(dashboardStore.selectedGrid.metricMode === MetricModes.Expression ? true : false);
+  const isExpression = ref<boolean>(dashboardStore.selectedGrid.metricMode === MetricModes.Expression);
   const metrics = computed(
     () => (isExpression.value ? dashboardStore.selectedGrid.expressions : dashboardStore.selectedGrid.metrics) || [],
   );
diff --git a/src/views/dashboard/related/topology/components/Graph.vue b/src/views/dashboard/related/topology/components/Graph.vue
index 22fc4078..14df6465 100644
--- a/src/views/dashboard/related/topology/components/Graph.vue
+++ b/src/views/dashboard/related/topology/components/Graph.vue
@@ -139,7 +139,7 @@ limitations under the License. -->
   import { useSelectorStore } from "@/store/modules/selectors";
   import { useTopologyStore } from "@/store/modules/topology";
   import { useDashboardStore } from "@/store/modules/dashboard";
-  import { EntityType, DepthList } from "../../../data";
+  import { EntityType, DepthList, MetricModes } from "../../../data";
   import router from "@/router";
   import { ElMessage } from "element-plus";
   import Settings from "./Settings.vue";
@@ -153,6 +153,7 @@ limitations under the License. -->
   import { useQueryTopologyMetrics } from "@/hooks/useMetricsProcessor";
   import { layout, circleIntersection, computeCallPos } from "./utils/layout";
   import zoom from "../../components/utils/zoom";
+  import { useQueryTopologyExpressionsProcessor } from "@/hooks/useExpressionsProcessor";
 
   /*global Nullable, defineProps */
   const props = defineProps({
@@ -220,19 +221,27 @@ limitations under the License. -->
   }
 
   async function update() {
-    topologyStore.queryNodeMetrics(settings.value.nodeMetrics || []);
-    topologyStore.getLinkClientMetrics(settings.value.linkClientMetrics || []);
-    topologyStore.getLinkServerMetrics(settings.value.linkServerMetrics || []);
+    if (settings.value.metricMode === MetricModes.Expression) {
+      topologyStore.queryNodeExpressions(settings.value.nodeExpressions || []);
+      topologyStore.getLinkExpressions(settings.value.linkClientExpressions || []);
+      topologyStore.getLinkExpressions(settings.value.linkServerExpressions || []);
+    } else {
+      topologyStore.queryNodeMetrics(settings.value.nodeMetrics || []);
+      topologyStore.getLinkClientMetrics(settings.value.linkClientMetrics || []);
+      topologyStore.getLinkServerMetrics(settings.value.linkServerMetrics || []);
+    }
+
     window.addEventListener("resize", resize);
     await initLegendMetrics();
     draw();
     tooltip.value = d3.select("#tooltip");
     setNodeTools(settings.value.nodeDashboard);
   }
+
   function draw() {
     const node = findMostFrequent(topologyStore.calls);
     const levels = [];
-    const nodes = topologyStore.nodes.sort((a: Node, b: Node) => {
+    const nodes = JSON.parse(JSON.stringify(topologyStore.nodes)).sort((a: Node, b: Node) => {
       if (a.name.toLowerCase() < b.name.toLowerCase()) {
         return -1;
       }
@@ -352,18 +361,49 @@ limitations under the License. -->
   }
 
   async function initLegendMetrics() {
-    const ids = topologyStore.nodes.map((d: Node) => d.id);
-    const names = props.config.legend.map((d: any) => d.name);
-    if (names.length && ids.length) {
-      const param = await useQueryTopologyMetrics(names, ids);
-      const res = await topologyStore.getLegendMetrics(param);
+    if (!topologyStore.nodes.length) {
+      return;
+    }
+    if (settings.value.metricMode === MetricModes.Expression) {
+      const expression = props.config.legendMQE && props.config.legendMQE.expression;
+      if (!expression) {
+        return;
+      }
+      const { getExpressionQuery } = useQueryTopologyExpressionsProcessor([expression], topologyStore.nodes);
+      const param = getExpressionQuery();
+      const res = await topologyStore.getNodeExpressionValue(param);
       if (res.errors) {
         ElMessage.error(res.errors);
+      } else {
+        topologyStore.setLegendValues([expression], res.data);
+      }
+    } else {
+      const names = props.config.legend.map((d: any) => d.name);
+      if (!names.length) {
+        return;
+      }
+      const ids = topologyStore.nodes.map((d: Node) => d.id);
+      if (ids.length) {
+        const param = await useQueryTopologyMetrics(names, ids);
+        const res = await topologyStore.getLegendMetrics(param);
+        if (res.errors) {
+          ElMessage.error(res.errors);
+        }
       }
     }
   }
+
   function getNodeStatus(d: any) {
-    const legend = settings.value.legend;
+    const { legend, legendMQE } = settings.value;
+    if (settings.value.metricMode === MetricModes.Expression) {
+      if (!legendMQE) {
+        return icons.CUBE;
+      }
+      if (!legendMQE.expression) {
+        return icons.CUBE;
+      }
+      return Number(d[legendMQE.expression]) && d.isReal ? icons.CUBEERROR : icons.CUBE;
+    }
     if (!legend) {
       return icons.CUBE;
     }
@@ -381,7 +421,10 @@ limitations under the License. -->
     return c && d.isReal ? icons.CUBEERROR : icons.CUBE;
   }
   function showNodeTip(event: MouseEvent, data: Node) {
-    const nodeMetrics: string[] = settings.value.nodeMetrics || [];
+    const nodeMetrics: string[] =
+      (settings.value.metricMode === MetricModes.Expression
+        ? settings.value.nodeExpressions
+        : settings.value.nodeMetrics) || [];
     const nodeMetricConfig = settings.value.nodeMetricConfig || [];
     const html = nodeMetrics.map((m, index) => {
       const metric =
@@ -404,10 +447,16 @@ limitations under the License. -->
       .html(tipHtml);
   }
   function showLinkTip(event: MouseEvent, data: Call) {
-    const linkClientMetrics: string[] = settings.value.linkClientMetrics || [];
+    const linkClientMetrics: string[] =
+      settings.value.metricMode === MetricModes.Expression
+        ? settings.value.linkClientExpressions
+        : settings.value.linkClientMetrics || [];
     const linkServerMetricConfig: MetricConfigOpt[] = settings.value.linkServerMetricConfig || [];
     const linkClientMetricConfig: MetricConfigOpt[] = settings.value.linkClientMetricConfig || [];
-    const linkServerMetrics: string[] = settings.value.linkServerMetrics || [];
+    const linkServerMetrics: string[] =
+      settings.value.metricMode === MetricModes.Expression
+        ? settings.value.linkServerExpressions
+        : settings.value.linkServerMetrics || [];
     const htmlServer = linkServerMetrics.map((m, index) => {
       const metric = topologyStore.linkServerMetrics[m].values.find(
         (val: { id: string; value: unknown }) => val.id === data.id,
@@ -667,7 +716,7 @@ limitations under the License. -->
       padding: 0 15px;
       border-radius: 3px;
       color: $disabled-color;
-      border: 1px solid $disabled-color;
+      border: 1px solid #eee;
       background-color: $theme-background;
       box-shadow: #eee 1px 2px 10px;
       transition: all 0.5ms linear;
diff --git a/src/views/dashboard/related/topology/components/Metrics.vue b/src/views/dashboard/related/topology/components/Metrics.vue
index 3296e13e..6ae9e1bb 100644
--- a/src/views/dashboard/related/topology/components/Metrics.vue
+++ b/src/views/dashboard/related/topology/components/Metrics.vue
@@ -15,7 +15,9 @@ limitations under the License. -->
 <template>
   <div class="config-panel">
     <div class="item mb-10">
-      <span class="label">{{ t("metrics") }}</span>
+      <span class="label">{{
+        t(dashboardStore.selectedGrid.metricMode === MetricModes.General ? "metrics" : "expressions")
+      }}</span>
       <SelectSingle :value="currentMetric" :options="metrics" @change="changeMetric" class="selectors" />
     </div>
     <div class="item mb-10">
@@ -38,7 +40,7 @@ limitations under the License. -->
         @change="changeConfigs({ label: currentConfig.label })"
       />
     </div>
-    <div class="item mb-10">
+    <div class="item mb-10" v-if="dashboardStore.selectedGrid.metricMode === MetricModes.General">
       <span class="label">{{ t("aggregation") }}</span>
       <SelectSingle
         :value="currentConfig.calculation"
@@ -54,17 +56,12 @@ limitations under the License. -->
   import { ref, computed, watch } from "vue";
   import type { PropType } from "vue";
   import { useI18n } from "vue-i18n";
-  import { CalculationOpts } from "../../../data";
+  import { CalculationOpts, MetricModes } from "../../../data";
   import { useDashboardStore } from "@/store/modules/dashboard";
-  import type { MetricConfigOpt } from "@/types/dashboard";
   import type { Option } from "element-plus/es/components/select-v2/src/select.types";
 
   /*global defineEmits, defineProps */
   const props = defineProps({
-    currentMetricConfig: {
-      type: Object as PropType<MetricConfigOpt>,
-      default: () => ({ unit: "" }),
-    },
     type: { type: String, default: "" },
     metrics: { type: Array as PropType<string[]>, default: () => [] },
   });
diff --git a/src/views/dashboard/related/topology/components/PodTopology.vue b/src/views/dashboard/related/topology/components/PodTopology.vue
index 114570c4..8db56c0d 100644
--- a/src/views/dashboard/related/topology/components/PodTopology.vue
+++ b/src/views/dashboard/related/topology/components/PodTopology.vue
@@ -22,6 +22,7 @@ limitations under the License. -->
         :options="DepthList"
         placeholder="Select a option"
         @change="changeDepth"
+        size="small"
       />
     </span>
     <span class="switch-icon ml-5" title="Settings" @click="setConfig" v-if="dashboardStore.editMode">
@@ -68,7 +69,7 @@ limitations under the License. -->
   import { useDashboardStore } from "@/store/modules/dashboard";
   import { useSelectorStore } from "@/store/modules/selectors";
   import { useAppStoreWithOut } from "@/store/modules/app";
-  import { EntityType, DepthList } from "../../../data";
+  import { EntityType, DepthList, MetricModes } from "../../../data";
   import { ElMessage } from "element-plus";
   import Sankey from "./Sankey.vue";
   import Settings from "./Settings.vue";
@@ -118,9 +119,15 @@ limitations under the License. -->
     };
     height.value = dom.height - 70;
     width.value = dom.width - 5;
-    topologyStore.getLinkClientMetrics(settings.value.linkClientMetrics || []);
-    topologyStore.getLinkServerMetrics(settings.value.linkServerMetrics || []);
-    topologyStore.queryNodeMetrics(settings.value.nodeMetrics || []);
+    if (settings.value.metricMode === MetricModes.Expression) {
+      topologyStore.queryNodeExpressions(settings.value.nodeExpressions || []);
+      topologyStore.getLinkExpressions(settings.value.linkClientExpressions || []);
+      topologyStore.getLinkExpressions(settings.value.linkServerExpressions || []);
+    } else {
+      topologyStore.getLinkClientMetrics(settings.value.linkClientMetrics || []);
+      topologyStore.getLinkServerMetrics(settings.value.linkServerMetrics || []);
+      topologyStore.queryNodeMetrics(settings.value.nodeMetrics || []);
+    }
   }
 
   function resize() {
@@ -265,7 +272,6 @@ limitations under the License. -->
 <style lang="scss" scoped>
   .sankey {
     margin-top: 10px;
-    background-color: #333840 !important;
     color: #ddd;
   }
 
@@ -275,7 +281,8 @@ limitations under the License. -->
     right: 10px;
     width: 400px;
     height: 600px;
-    background-color: #2b3037;
+    border: 1px solid #eee;
+    background-color: $theme-background;
     overflow: auto;
     padding: 10px 15px;
     border-radius: 3px;
@@ -283,6 +290,7 @@ limitations under the License. -->
     transition: all 0.5ms linear;
     z-index: 99;
     text-align: left;
+    box-shadow: #eee 1px 2px 10px;
   }
 
   .tool {
@@ -299,8 +307,8 @@ limitations under the License. -->
     text-align: center;
     cursor: pointer;
     transition: all 0.5ms linear;
-    background-color: #252a2f99;
-    color: #ddd;
+    background: rgb(0 0 0 / 30%);
+    color: $text-color;
     display: inline-block;
     border-radius: 3px;
   }
diff --git a/src/views/dashboard/related/topology/components/Sankey.vue b/src/views/dashboard/related/topology/components/Sankey.vue
index 51ba4823..156b8302 100644
--- a/src/views/dashboard/related/topology/components/Sankey.vue
+++ b/src/views/dashboard/related/topology/components/Sankey.vue
@@ -23,6 +23,7 @@ limitations under the License. -->
   import type { Node, Call } from "@/types/topology";
   import type { MetricConfigOpt } from "@/types/dashboard";
   import { aggregation } from "@/hooks/useMetricsProcessor";
+  import { MetricModes } from "../../../data";
 
   /*global defineEmits, defineProps */
   const props = defineProps({
@@ -51,16 +52,16 @@ limitations under the License. -->
         data: topologyStore.nodes,
         links: topologyStore.calls,
         label: {
-          color: "#fff",
+          color: "#666",
           formatter: (param: any) => param.data.name,
         },
-        color: ["#3fe1da", "#6be6c1", "#3fcfdc", "#626c91", "#3fbcde", "#a0a7e6", "#3fa9e1", "#96dee8", "#bf99f8"],
+        color: ["#6be6c1", "#3fcfdc", "#626c91", "#3fbcde", "#a0a7e6", "#3fa9e1", "#96dee8", "#bf99f8"],
         itemStyle: {
           borderWidth: 0,
         },
         lineStyle: {
           color: "source",
-          opacity: 0.12,
+          opacity: 0.3,
         },
         tooltip: {
           position: "bottom",
@@ -75,8 +76,14 @@ limitations under the License. -->
     };
   }
   function linkTooltip(data: Call) {
-    const clientMetrics: string[] = Object.keys(topologyStore.linkClientMetrics);
-    const serverMetrics: string[] = Object.keys(topologyStore.linkServerMetrics);
+    const clientMetrics: string[] =
+      props.settings.metricMode === MetricModes.Expression
+        ? props.settings.linkClientExpressions
+        : props.settings.linkClientMetrics;
+    const serverMetrics: string[] =
+      props.settings.metricMode === MetricModes.Expression
+        ? props.settings.linkServerExpressions
+        : props.settings.linkServerMetrics;
     const linkServerMetricConfig: MetricConfigOpt[] = props.settings.linkServerMetricConfig || [];
     const linkClientMetricConfig: MetricConfigOpt[] = props.settings.linkClientMetricConfig || [];
 
@@ -108,7 +115,10 @@ limitations under the License. -->
   }
 
   function nodeTooltip(data: Node) {
-    const nodeMetrics: string[] = Object.keys(topologyStore.nodeMetricValue);
+    const nodeMetrics: string[] =
+      props.settings.metricMode === MetricModes.Expression
+        ? props.settings.nodeExpressions
+        : props.settings.nodeMetrics;
     const nodeMetricConfig = props.settings.nodeMetricConfig || [];
     const html = nodeMetrics.map((m, index) => {
       const metric =
diff --git a/src/views/dashboard/related/topology/components/Settings.vue b/src/views/dashboard/related/topology/components/Settings.vue
index 95d47668..d2074f36 100644
--- a/src/views/dashboard/related/topology/components/Settings.vue
+++ b/src/views/dashboard/related/topology/components/Settings.vue
@@ -13,6 +13,17 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. -->
 <template>
+  <div class="mt-20">
+    <h5 class="title">{{ t("metricMode") }}</h5>
+    <el-switch
+      v-model="isExpression"
+      class="mt-5"
+      active-text="Expressions"
+      inactive-text="General"
+      size="small"
+      @change="changeMetricMode"
+    />
+  </div>
   <div class="link-settings">
     <h5 class="title">{{ t("callSettings") }}</h5>
     <div class="label">{{ t("linkDashboard") }}</div>
@@ -27,16 +38,34 @@ limitations under the License. -->
     />
     <div class="label">
       <span>{{ t("linkServerMetrics") }}</span>
-      <el-popover placement="left" :width="400" trigger="click" v-if="states.linkServerMetrics.length">
+      <el-popover
+        placement="left"
+        :width="400"
+        trigger="click"
+        v-if="isExpression ? states.linkServerExpressions.length : states.linkServerMetrics.length"
+      >
         <template #reference>
           <span @click="setConfigType('linkServerMetricConfig')">
             <Icon class="cp ml-5" iconName="mode_edit" size="middle" />
           </span>
         </template>
-        <Metrics :type="configType" :metrics="states.linkServerMetrics" @update="changeLinkServerMetrics" />
+        <Metrics
+          :type="configType"
+          :metrics="isExpression ? states.linkServerExpressions : states.linkServerMetrics"
+          @update="updateSettings"
+        />
       </el-popover>
     </div>
+    <div v-if="isExpression">
+      <Tags
+        :tags="states.linkServerExpressions"
+        :vertical="true"
+        :text="t('addExpressions')"
+        @change="(param) => changeLinkServerExpressions(param)"
+      />
+    </div>
     <Selector
+      v-else
       class="inputs"
       :multiple="true"
       :value="states.linkServerMetrics"
@@ -48,16 +77,34 @@ limitations under the License. -->
     <span v-show="dashboardStore.entity !== EntityType[2].value">
       <div class="label">
         <span>{{ t("linkClientMetrics") }}</span>
-        <el-popover placement="left" :width="400" trigger="click" v-if="states.linkClientMetrics.length">
+        <el-popover
+          placement="left"
+          :width="400"
+          trigger="click"
+          v-if="isExpression ? states.linkClientExpressions.length : states.linkClientMetrics.length"
+        >
           <template #reference>
             <span @click="setConfigType('linkClientMetricConfig')">
               <Icon class="cp ml-5" iconName="mode_edit" size="middle" />
             </span>
           </template>
-          <Metrics :type="configType" :metrics="states.linkClientMetrics" @update="changeLinkClientMetrics" />
+          <Metrics
+            :type="configType"
+            :metrics="isExpression ? states.linkClientExpressions : states.linkClientMetrics"
+            @update="updateSettings"
+          />
         </el-popover>
       </div>
+      <div v-if="isExpression">
+        <Tags
+          :tags="states.linkClientExpressions"
+          :vertical="true"
+          :text="t('addExpressions')"
+          @change="(param) => changeLinkClientExpressions(param)"
+        />
+      </div>
       <Selector
+        v-else
         class="inputs"
         :multiple="true"
         :value="states.linkClientMetrics"
@@ -110,16 +157,34 @@ limitations under the License. -->
     </div>
     <div class="label">
       <span>{{ t("nodeMetrics") }}</span>
-      <el-popover placement="left" :width="400" trigger="click" v-if="states.nodeMetrics.length">
+      <el-popover
+        placement="left"
+        :width="400"
+        trigger="click"
+        v-if="isExpression ? states.nodeExpressions.length : states.nodeMetrics.length"
+      >
         <template #reference>
           <span @click="setConfigType('nodeMetricConfig')">
             <Icon class="cp ml-5" iconName="mode_edit" size="middle" />
           </span>
         </template>
-        <Metrics :type="configType" :metrics="states.nodeMetrics" @update="changeNodeMetrics" />
+        <Metrics
+          :type="configType"
+          :metrics="isExpression ? states.nodeExpressions : states.nodeMetrics"
+          @update="updateSettings"
+        />
       </el-popover>
     </div>
+    <div v-if="isExpression">
+      <Tags
+        :tags="states.nodeExpressions"
+        :vertical="true"
+        :text="t('addExpressions')"
+        @change="(param) => changeNodeExpressions(param)"
+      />
+    </div>
     <Selector
+      v-else
       class="inputs"
       :multiple="true"
       :value="states.nodeMetrics"
@@ -131,8 +196,26 @@ limitations under the License. -->
   </div>
   <div class="legend-settings" v-show="isService">
     <h5 class="title">{{ t("legendSettings") }}</h5>
-    <div class="label">{{ t("conditions") }}</div>
-    <div v-for="(metric, index) of legend.metric" :key="metric.name + index">
+    <span v-if="isExpression">
+      <div class="label">Healthy Description</div>
+      <el-input v-model="description.healthy" placeholder="Please input description" size="small" class="mt-5" />
+    </span>
+    <div class="label">
+      <span>{{ t(isExpression ? "unhealthyExpression" : "conditions") }}</span>
+      <el-tooltip
+        class="cp"
+        v-if="isExpression"
+        content="The node would be red to indicate unhealthy status when the expression return greater than 0"
+      >
+        <span>
+          <Icon class="icon-help ml-5" iconName="help" size="small" />
+        </span>
+      </el-tooltip>
+    </div>
+    <div v-if="isExpression">
+      <el-input v-model="legendMQE.expression" placeholder="Please input a expression" size="small" class="inputs" />
+    </div>
+    <div v-for="(metric, index) of legend" :key="index" v-else>
       <Selector
         class="item"
         :value="metric.name"
@@ -163,14 +246,16 @@ limitations under the License. -->
           class="cp"
           iconName="add_circle_outlinecontrol_point"
           size="middle"
-          v-show="index === legend.metric.length - 1 && legend.metric.length < 5"
+          v-show="index === legend.length - 1 && legend.length < 5"
           @click="addMetric"
         />
       </span>
-      <div v-show="index !== legend.metric.length - 1">&&</div>
+      <div v-show="index !== legend.length - 1">&&</div>
     </div>
-    <div class="label">Healthy Description</div>
-    <el-input v-model="description.healthy" placeholder="Please input description" size="small" class="mt-5" />
+    <span v-if="!isExpression">
+      <div class="label">Healthy Description</div>
+      <el-input v-model="description.healthy" placeholder="Please input description" size="small" class="mt-5" />
+    </span>
     <div class="label">Unhealthy Description</div>
     <el-input v-model="description.unhealthy" placeholder="Please input description" size="small" class="mt-5" />
     <el-button @click="setLegend" class="legend-btn" size="small" type="primary">
@@ -184,12 +269,20 @@ limitations under the License. -->
   import { useDashboardStore } from "@/store/modules/dashboard";
   import { useTopologyStore } from "@/store/modules/topology";
   import { ElMessage } from "element-plus";
-  import { MetricCatalog, ScopeType, MetricConditions } from "../../../data";
+  import {
+    MetricCatalog,
+    ScopeType,
+    MetricConditions,
+    EntityType,
+    LegendOpt,
+    MetricsType,
+    MetricModes,
+  } from "../../../data";
   import type { Option } from "@/types/app";
   import { useQueryTopologyMetrics } from "@/hooks/useMetricsProcessor";
+  import { useQueryTopologyExpressionsProcessor } from "@/hooks/useExpressionsProcessor";
   import type { Node } from "@/types/topology";
   import type { DashboardItem, MetricConfigOpt } from "@/types/dashboard";
-  import { EntityType, LegendOpt, MetricsType } from "../../../data";
   import Metrics from "./Metrics.vue";
 
   /*global defineEmits */
@@ -198,6 +291,7 @@ limitations under the License. -->
   const dashboardStore = useDashboardStore();
   const topologyStore = useTopologyStore();
   const { selectedGrid } = dashboardStore;
+  const isExpression = ref<boolean>(dashboardStore.selectedGrid.metricMode === MetricModes.Expression);
   const nodeDashboard =
     selectedGrid.nodeDashboard && selectedGrid.nodeDashboard.length ? selectedGrid.nodeDashboard : "";
   const isService = [EntityType[0].value, EntityType[1].value].includes(dashboardStore.entity);
@@ -220,6 +314,9 @@ limitations under the License. -->
     linkMetricList: Option[];
     linkDashboards: (DashboardItem & { label: string; value: string })[];
     nodeDashboards: (DashboardItem & { label: string; value: string })[];
+    linkServerExpressions: string[];
+    linkClientExpressions: string[];
+    nodeExpressions: string[];
   }>({
     linkDashboard: selectedGrid.linkDashboard || "",
     nodeDashboard: selectedGrid.nodeDashboard || [],
@@ -230,13 +327,15 @@ limitations under the License. -->
     linkMetricList: [],
     linkDashboards: [],
     nodeDashboards: [],
+    linkServerExpressions: selectedGrid.linkServerExpressions || [],
+    linkClientExpressions: selectedGrid.linkClientExpressions || [],
+    nodeExpressions: selectedGrid.nodeExpressions || [],
   });
   const l = selectedGrid.legend && selectedGrid.legend.length;
-  const legend = reactive<{
-    metric: { name: string; condition: string; value: string }[];
-  }>({
-    metric: l ? selectedGrid.legend : [{ name: "", condition: "", value: "" }],
-  });
+  const legend = ref<{ name: string; condition: string; value: string }[]>(
+    l ? selectedGrid.legend : [{ name: "", condition: "", value: "" }],
+  );
+  const legendMQE = ref<{ expression: string }>(selectedGrid.legendMQE || { expression: "" });
   const configType = ref<string>("");
   const description = reactive<any>(selectedGrid.description || {});
 
@@ -285,18 +384,35 @@ limitations under the License. -->
   }
   async function setLegend() {
     updateSettings();
-    const ids = topologyStore.nodes.map((d: Node) => d.id);
-    const names = dashboardStore.selectedGrid.legend.map((d: any) => d.name);
-    if (!names.length) {
-      emit("updateNodes");
-      return;
-    }
-    const param = await useQueryTopologyMetrics(names, ids);
-    const res = await topologyStore.getLegendMetrics(param);
+    if (isExpression.value) {
+      const expression = dashboardStore.selectedGrid.legendMQE && dashboardStore.selectedGrid.legendMQE.expression;
+      if (!expression) {
+        emit("updateNodes");
+        return;
+      }
+      const { getExpressionQuery } = useQueryTopologyExpressionsProcessor([expression], topologyStore.nodes);
+      const param = getExpressionQuery();
+      const res = await topologyStore.getNodeExpressionValue(param);
+      if (res.errors) {
+        ElMessage.error(res.errors);
+      } else {
+        topologyStore.setLegendValues([expression], res.data);
+      }
+    } else {
+      const names = dashboardStore.selectedGrid.legend.map((d: any) => d.name && d.condition && d.value);
+      if (!names.length) {
+        emit("updateNodes");
+        return;
+      }
+      const ids = topologyStore.nodes.map((d: Node) => d.id);
+      const param = await useQueryTopologyMetrics(names, ids);
+      const res = await topologyStore.getLegendMetrics(param);
 
-    if (res.errors) {
-      ElMessage.error(res.errors);
+      if (res.errors) {
+        ElMessage.error(res.errors);
+      }
     }
+
     emit("updateNodes");
   }
   function changeNodeDashboard(opt: any) {
@@ -308,7 +424,7 @@ limitations under the License. -->
     updateSettings();
   }
   function changeLegend(type: string, opt: any, index: number) {
-    (legend.metric[index] as any)[type] = opt[0].value || opt;
+    (legend.value[index] as any)[type] = opt[0].value || opt;
   }
   function changeScope(index: number, opt: Option[] | any) {
     items[index].scope = opt[0].value;
@@ -340,7 +456,13 @@ limitations under the License. -->
     updateSettings();
   }
   function updateSettings(metricConfig?: { [key: string]: MetricConfigOpt[] }) {
-    const metrics = legend.metric.filter((d: any) => d.name && d.value && d.condition);
+    let metrics = [];
+    if (isExpression.value) {
+      metrics = legend.value.filter((d: any) => d.name);
+    } else {
+      metrics = legend.value.filter((d: any) => d.name && d.value && d.condition);
+    }
+
     const param = {
       ...dashboardStore.selectedGrid,
       linkDashboard: states.linkDashboard,
@@ -350,7 +472,12 @@ limitations under the License. -->
       linkServerMetrics: states.linkServerMetrics,
       linkClientMetrics: states.linkClientMetrics,
       nodeMetrics: states.nodeMetrics,
+      linkServerExpressions: states.linkServerExpressions,
+      linkClientExpressions: states.linkClientExpressions,
+      nodeExpressions: states.nodeExpressions,
+      metricMode: isExpression.value ? MetricModes.Expression : MetricModes.General,
       legend: metrics,
+      legendMQE: legendMQE.value,
       ...metricConfig,
       description,
     };
@@ -378,6 +505,30 @@ limitations under the License. -->
     }
     topologyStore.getLinkServerMetrics(states.linkServerMetrics);
   }
+  function changeLinkServerExpressions(param: string[]) {
+    if (!isExpression.value) {
+      return;
+    }
+    states.linkServerExpressions = param;
+    updateSettings();
+    if (!states.linkServerExpressions.length) {
+      topologyStore.setLinkServerMetrics({});
+      return;
+    }
+    topologyStore.getLinkExpressions(states.linkServerExpressions, "SERVER");
+  }
+  function changeLinkClientExpressions(param: string[]) {
+    if (!isExpression.value) {
+      return;
+    }
+    states.linkClientExpressions = param;
+    updateSettings();
+    if (!states.linkClientExpressions.length) {
+      topologyStore.changeLinkClientMetrics({});
+      return;
+    }
+    topologyStore.getLinkExpressions(states.linkClientExpressions, "CLIENT");
+  }
   function updateLinkClientMetrics(options: Option[] | any) {
     const opt = options.map((d: Option) => d.value);
     const index = states.linkClientMetrics.findIndex((d: any) => !opt.includes(d));
@@ -419,18 +570,49 @@ limitations under the License. -->
     topologyStore.queryNodeMetrics(states.nodeMetrics);
   }
   function deleteMetric(index: number) {
-    if (legend.metric.length === 1) {
-      legend.metric = [{ name: "", condition: "", value: "" }];
+    if (legend.value.length === 1) {
+      legend.value = [{ name: "", condition: "", value: "" }];
       return;
     }
-    legend.metric.splice(index, 1);
+    legend.value.splice(index, 1);
   }
   function addMetric() {
-    legend.metric.push({ name: "", condition: "", value: "" });
+    legend.value.push({ name: "", condition: "", value: "" });
   }
   function setConfigType(type: string) {
     configType.value = type;
   }
+  function changeNodeExpressions(param: string[]) {
+    if (!isExpression.value) {
+      return;
+    }
+    states.nodeExpressions = param;
+    updateSettings();
+    if (!states.nodeExpressions.length) {
+      topologyStore.setNodeMetricValue({});
+      return;
+    }
+    topologyStore.queryNodeExpressions(states.nodeExpressions);
+  }
+  function changeMetricMode() {
+    legend.value = [{ name: "", condition: "", value: "" }];
+    const config = {
+      linkServerMetricConfig: [],
+      linkClientMetricConfig: [],
+      nodeMetricConfig: [],
+    };
+    if (isExpression.value) {
+      states.linkServerMetrics = [];
+      states.linkClientMetrics = [];
+      states.nodeMetrics = [];
+    } else {
+      states.linkServerExpressions = [];
+      states.linkClientExpressions = [];
+      states.nodeExpressions = [];
+    }
+
+    updateSettings(config);
+  }
 </script>
 <style lang="scss" scoped>
   .link-settings {
@@ -442,6 +624,11 @@ limitations under the License. -->
     width: 355px;
   }
 
+  .legend-inputs {
+    margin-top: 8px;
+    width: 310px;
+  }
+
   .item {
     width: 130px;
     margin-top: 5px;
@@ -453,13 +640,14 @@ limitations under the License. -->
   }
 
   .title {
-    margin-bottom: 0;
     color: #666;
+    margin-bottom: 0;
   }
 
   .label {
     font-size: $font-size-smaller;
     margin-top: 10px;
+    color: #666;
   }
 
   .legend-btn {