diff --git a/fe/src/views/components/ConfigSettings/ConfigSettings.js b/fe/src/views/components/ConfigSettings/ConfigSettings.js
index 893ee4e..c9f31fa 100644
--- a/fe/src/views/components/ConfigSettings/ConfigSettings.js
+++ b/fe/src/views/components/ConfigSettings/ConfigSettings.js
@@ -59,6 +59,7 @@ export function usePage() {
   const migrationToken = ref('')
   const migrationRecord = ref(null)
   const restartPreview = ref(null)
+  let initializationErrorShown = false
 
   const canWrite = computed(() => globalStatus.hasCapability('config.write_global'))
   const canRollback = computed(() => globalStatus.hasCapability('config.rollback'))
@@ -271,10 +272,14 @@ export function usePage() {
   }
   const loadAll = async () => {
     loading.value = true
+    initializationErrorShown = false
     try {
       await Promise.all([loadStatus(), loadSection(), loadBackups(), loadAudit()])
     } catch (error) {
-      ElMessage.error(error.message || '配置管理数据读取失败')
+      if (!initializationErrorShown) {
+        initializationErrorShown = true
+        ElMessage.error(error.message || '配置管理数据读取失败')
+      }
     } finally {
       loading.value = false
     }
diff --git a/fe/src/views/components/SecuritySettings/SecuritySettings.js b/fe/src/views/components/SecuritySettings/SecuritySettings.js
index 9488547..7c9dc9f 100644
--- a/fe/src/views/components/SecuritySettings/SecuritySettings.js
+++ b/fe/src/views/components/SecuritySettings/SecuritySettings.js
@@ -49,6 +49,8 @@ export function usePage() {
   const generatedCodes = ref([])
   const externalEmails = ref([])
   const externalLoading = ref(false)
+  let lastNotificationKey = ''
+  let lastNotificationAt = 0
   const bindForm = reactive({ email: '', type: 'backup', challengeId: '', bindingId: 0, code: '' })
 
   const ruleForm = reactive({ current_pwd: '', new_pwd: '', new_pwd2: '' })
@@ -59,6 +61,11 @@ export function usePage() {
   })
 
   const notify = (message, type = 'error') => {
+    const notificationKey = `${type}:${String(message || '').trim()}`
+    const now = Date.now()
+    if (notificationKey === lastNotificationKey && now - lastNotificationAt < 1500) return
+    lastNotificationKey = notificationKey
+    lastNotificationAt = now
     ElNotification({ title: type === 'success' ? '操作成功' : '操作失败', message, type })
   }