diff --git a/nezha-fronted/src/components/page/dashboard/overview/overview.vue b/nezha-fronted/src/components/page/dashboard/overview/overview.vue
index 2179e2cb2..9a4ef3560 100644
--- a/nezha-fronted/src/components/page/dashboard/overview/overview.vue
+++ b/nezha-fronted/src/components/page/dashboard/overview/overview.vue
@@ -611,6 +611,7 @@ export default {
       return new Promise(resolve => {
         this.$get('stat/alertRule/total').then(response => {
           if (response.code === 200) {
+            this.alertRuleData = 0
             response.data.list.forEach(d => {
               this.alertRuleData += d.num
             })