diff --git a/src/components/UrgentTestDialog.vue b/src/components/UrgentTestDialog.vue
index 76c0f2a..09dd223 100644
--- a/src/components/UrgentTestDialog.vue
+++ b/src/components/UrgentTestDialog.vue
@@ -681,7 +681,9 @@ export default {
 
       try {
         this.persistentNotifications = this.persistentNotifications.filter(n => n.id !== id)
-        await dataProvider.saveData('notification-list', this.persistentNotifications)
+        // 当通知列表为空时，保存空对象 {} 而不是空数组 []，因为后端不接受空数组
+        const dataToSave = this.persistentNotifications.length > 0 ? this.persistentNotifications : {}
+        await dataProvider.saveData('notification-list', dataToSave)
         this.$message?.success('已删除')
       } catch (e) {
         console.error('删除失败', e)
diff --git a/src/pages/index.vue b/src/pages/index.vue
index d555d5e..224818e 100644
--- a/src/pages/index.vue
+++ b/src/pages/index.vue
@@ -2066,7 +2066,9 @@ export default {
     },
     async removePersistentNotification(id) {
       this.persistentNotifications = this.persistentNotifications.filter(n => n.id !== id);
-      await dataProvider.saveData('notification-list', this.persistentNotifications);
+      // 当通知列表为空时，保存空对象 {} 而不是空数组 []，因为后端不接受空数组
+      const dataToSave = this.persistentNotifications.length > 0 ? this.persistentNotifications : {};
+      await dataProvider.saveData('notification-list', dataToSave);
       this.notificationDetailDialog = false;
     },
   },