diff --git a/frontend/src/views/systemMonitor/diskMonitor/index.vue b/frontend/src/views/systemMonitor/diskMonitor/index.vue
index 8bccb31..15ed61b 100644
--- a/frontend/src/views/systemMonitor/diskMonitor/index.vue
+++ b/frontend/src/views/systemMonitor/diskMonitor/index.vue
@@ -45,7 +45,14 @@ import DiskMonitorPolicyForm from './components/DiskMonitorPolicyForm.vue'
 import DiskMonitorSummary from './components/DiskMonitorSummary.vue'
 import DiskMonitorTargetDialog from './components/DiskMonitorTargetDialog.vue'
 import DiskMonitorTargetTable from './components/DiskMonitorTargetTable.vue'
-import { createDefaultPolicy, createEmptyTarget, validatePolicy, validateTarget } from './utils/form'
+import {
+    createDefaultPolicy,
+    createEmptyTarget,
+    normalizeTargetItem,
+    validatePolicy,
+    validateTarget,
+    validateTargetNotifications
+} from './utils/form'
 
 defineOptions({
     name: 'DiskMonitorPage'
@@ -71,11 +78,14 @@ const handleBack = async () => {
     await router.push('/systemMonitor')
 }
 
-const cloneTarget = (target: DiskMonitor.TargetItem): DiskMonitor.TargetItem => ({
-    ...target,
-    notifyPathList: target.notifyPathList.map(item => ({ ...item })),
-    notifyHttpList: target.notifyHttpList.map(item => ({ ...item }))
-})
+const cloneTarget = (target: DiskMonitor.TargetItem): DiskMonitor.TargetItem => {
+    const normalized = normalizeTargetItem(target)
+    return {
+        ...normalized,
+        notifyPathList: normalized.notifyPathList.map(item => ({ ...item })),
+        notifyHttpList: normalized.notifyHttpList.map(item => ({ ...item }))
+    }
+}
 
 const openAddTarget = () => {
     editingTargetIndex.value = -1
@@ -86,23 +96,30 @@ const openAddTarget = () => {
 const openEditTarget = (row: DiskMonitor.TargetItem, index: number) => {
     editingTargetIndex.value = index
     // 编辑时克隆当前行，避免未确认前直接污染列表数据
-    editingTarget.value = cloneTarget(row)
+    editingTarget.value = cloneTarget(normalizeTargetItem(row))
     targetDialogVisible.value = true
 }
 
 const confirmTarget = () => {
-    // 提交前统一规范盘符并做去重、阈值关系校验
+    // 提交前统一规范盘符并做去重、阈值与通知配置校验
     const normalizedDriveLetter = editingTarget.value.driveLetter.trim().toUpperCase()
     const payload: DiskMonitor.TargetItem = {
-        ...editingTarget.value,
+        ...normalizeTargetItem(editingTarget.value),
         driveLetter: normalizedDriveLetter
     }
     const exists = targetList.value
         .filter((_, index) => index !== editingTargetIndex.value)
         .map(item => item.driveLetter.trim().toUpperCase())
-    const errorMessage = validateTarget(payload, exists)
-    if (errorMessage) {
-        ElMessage.warning(errorMessage)
+
+    const targetErrorMessage = validateTarget(payload, exists)
+    if (targetErrorMessage) {
+        ElMessage.warning(targetErrorMessage)
+        return
+    }
+
+    const notifyErrorMessage = validateTargetNotifications(payload)
+    if (notifyErrorMessage) {
+        ElMessage.warning(notifyErrorMessage)
         return
     }
 
@@ -125,7 +142,8 @@ const loadPolicyDetail = async () => {
     if (!detail) return
 
     policyForm.value = detail.policy || createDefaultPolicy()
-    targetList.value = detail.targets || []
+    // 后端列表字段允许为空，这里统一归一化为数组，避免编辑器和克隆流程出现空引用
+    targetList.value = (detail.targets || []).map(item => normalizeTargetItem(item))
 }
 
 const loadLatestJob = async () => {
@@ -144,7 +162,7 @@ const loadLatestJob = async () => {
 const loadPageData = async () => {
     loading.init = true
     try {
-        // 页面初始化时并行拉取策略和最近任务，保证摘要卡片和表单状态一致。
+        // 页面初始化时并行拉取策略和最近任务，保证摘要卡片和表单状态一致
         await Promise.all([loadPolicyDetail(), loadLatestJob()])
     } finally {
         loading.init = false
@@ -167,7 +185,7 @@ const handleSave = async () => {
             targets: targetList.value
         })
         ElMessage.success('配置保存成功')
-        // 保存完成后重新拉取数据，避免本地状态与服务端策略偏差。
+        // 保存完成后重新拉取数据，避免本地状态与服务端策略偏差
         await loadPageData()
     } finally {
         loading.save = false
@@ -183,7 +201,7 @@ const handleRun = async () => {
             jobSource: 'MANUAL'
         })
         ElMessage.success('监控任务已启动')
-        // 手动触发任务后刷新摘要，展示最新任务状态。
+        // 手动触发任务后刷新摘要，展示最新任务状态
         await loadPageData()
     } finally {
         loading.run = false
diff --git a/frontend/src/views/systemMonitor/diskMonitor/utils/form.ts b/frontend/src/views/systemMonitor/diskMonitor/utils/form.ts
index 44fb03f..698eb49 100644
--- a/frontend/src/views/systemMonitor/diskMonitor/utils/form.ts
+++ b/frontend/src/views/systemMonitor/diskMonitor/utils/form.ts
@@ -52,3 +52,26 @@ export const validateTarget = (target: DiskMonitor.TargetItem, exists: string[])
     if (target.alarmUsagePercent < target.warningUsagePercent) return '告警使用率不能小于预警使用率'
     return ''
 }
+
+export const validateTargetNotifications = (target: DiskMonitor.TargetItem) => {
+    if (target.notifyPathEnabled) {
+        const hasInvalidPath = (target.notifyPathList || []).some(item => !item.path?.trim())
+        if (hasInvalidPath) return '路径通知目标路径不能为空'
+    }
+
+    if (target.notifyHttpEnabled) {
+        const hasInvalidUrl = (target.notifyHttpList || []).some(item => {
+            const url = item.url?.trim()
+            return !url || !/^https?:\/\/\S+$/i.test(url)
+        })
+        if (hasInvalidUrl) return 'HTTP 通知目标 URL 需要为有效的 HTTP/HTTPS 地址'
+    }
+
+    return ''
+}
+
+export const normalizeTargetItem = (target: DiskMonitor.TargetItem): DiskMonitor.TargetItem => ({
+    ...target,
+    notifyPathList: Array.isArray(target.notifyPathList) ? target.notifyPathList : [],
+    notifyHttpList: Array.isArray(target.notifyHttpList) ? target.notifyHttpList : []
+})