diff --git a/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/RoadAndEvents/index.vue b/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/RoadAndEvents/index.vue
index 259b629c..f062538e 100644
--- a/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/RoadAndEvents/index.vue
+++ b/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/RoadAndEvents/index.vue
@@ -183,6 +183,7 @@ export default {
   beforeDestroy() {
     this.emitter.off("selectedCompleted", this.selectedCompletedHandle);
     Object.keys(lngLatMap).forEach(key => delete lngLatMap[key]);
+    window.renderData = undefined;
   },
   methods: {
     selectedCompletedHandle(item) {
diff --git a/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/RoadAndEvents/utils/map.js b/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/RoadAndEvents/utils/map.js
index 619bf64a..8775cb68 100644
--- a/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/RoadAndEvents/utils/map.js
+++ b/ruoyi-ui/src/views/JiHeExpressway/pages/Home/components/RoadAndEvents/utils/map.js
@@ -39,7 +39,7 @@ export class MarkerCluster {
   markerCluster;
   infoWindow;
 
-  data = [];
+  data = []; //标注集合
 
   constructor() {}
 
@@ -115,7 +115,7 @@ export class MarkerCluster {
     window.totalPages = totalPages;
     let num = (page - 1) * pageSize;
     function renderData(page) {
-      if (page < 1 || page > totalPages) return;
+      if (!data || page < 1 || page > totalPages) return;
       window.page = page;
       const pageSize = window.pageSize;
       const dataContainer = document.getElementById("dataContainer");
@@ -127,7 +127,7 @@ export class MarkerCluster {
       const startIndex = (page - 1) * pageSize;
       const endIndex = startIndex + pageSize;
       let num = (page - 1) * pageSize;
-      if (!data || data.length === 0 || data.length === 1) {
+      if (data.length === 0 || data.length === 1) {
         return this.infoWindow.close();
       }
       const { latitude: lat, longitude: lng } = data[0].extData;
@@ -391,6 +391,9 @@ export class MarkerCluster {
   setData() {
     this.markerCluster.setData(this.data);
   }
+  clear() {
+    this.data = [];
+  }
 }
 
 export function getContent(data) {