diff --git a/nezha-fronted/src/components/page/dashboard/overview/overview2.vue b/nezha-fronted/src/components/page/dashboard/overview/overview2.vue
index ae7d0a4fd..681143b7c 100644
--- a/nezha-fronted/src/components/page/dashboard/overview/overview2.vue
+++ b/nezha-fronted/src/components/page/dashboard/overview/overview2.vue
@@ -774,6 +774,7 @@
               }
             }
             this.$refs.dataCenterMap.modifyOption('tooltip','formatter',this.mapTooltipFormatter)
+            this.$refs.dataCenterMap.modifyOption('tooltip','borderColor',"rgba(221,228,237,1)")
             this.dataCenterMapSeries=[{
               name: 'DataCenter',
               type: 'scatter',