diff --git a/src/components/common/Settings/AI/SessionIndexSection.vue b/src/components/common/Settings/AI/SessionIndexSection.vue
index 9bcb596f..2dd3b611 100644
--- a/src/components/common/Settings/AI/SessionIndexSection.vue
+++ b/src/components/common/Settings/AI/SessionIndexSection.vue
@@ -40,6 +40,7 @@ const allSessionsStatus = ref<SessionIndexStatus[]>([])
 const isLoadingSessionStatus = ref(false)
 const isBatchGenerating = ref(false)
 const batchProgress = ref({ current: 0, total: 0, currentName: '' })
+const showRegenerateConfirm = ref(false)
 
 // 计算统计信息
 const sessionIndexStats = computed(() => {
@@ -147,6 +148,11 @@ async function batchGenerateIndex() {
   isBatchGenerating.value = false
 }
 
+function confirmRegenerateAll() {
+  showRegenerateConfirm.value = false
+  batchRegenerateAll()
+}
+
 // 批量重新生成所有会话的索引
 async function batchRegenerateAll() {
   if (allSessionsStatus.value.length === 0) return
@@ -301,7 +307,7 @@ onMounted(() => {
               variant="soft"
               :loading="isBatchGenerating"
               :disabled="isLoadingSessionStatus || sessionIndexStats.total === 0"
-              @click="batchRegenerateAll"
+              @click="showRegenerateConfirm = true"
             >
               <UIcon v-if="!isBatchGenerating" name="i-heroicons-arrow-path" class="mr-1 h-3 w-3" />
               {{ t('settings.ai.session.batchRegenerate') }}
@@ -321,5 +327,39 @@ onMounted(() => {
         </div>
       </div>
     </div>
+
+    <!-- 全部重新生成确认弹窗 -->
+    <UModal v-model:open="showRegenerateConfirm" :ui="{ content: 'z-[101]', overlay: 'z-[100]' }">
+      <template #content>
+        <div class="p-5">
+          <div class="mb-4 flex items-center gap-3">
+            <div class="flex h-10 w-10 items-center justify-center rounded-full bg-red-100 dark:bg-red-900/30">
+              <UIcon name="i-heroicons-exclamation-triangle" class="h-5 w-5 text-red-600 dark:text-red-400" />
+            </div>
+            <h3 class="text-lg font-semibold text-gray-900 dark:text-white">
+              {{ t('settings.ai.session.batchRegenerateConfirmTitle') }}
+            </h3>
+          </div>
+
+          <div class="space-y-3 text-sm text-gray-600 dark:text-gray-400">
+            <p>{{ t('settings.ai.session.batchRegenerateConfirmMessage') }}</p>
+            <div class="rounded-lg border border-red-200 bg-red-50 p-3 dark:border-red-800/50 dark:bg-red-900/20">
+              <p class="text-xs text-red-700 dark:text-red-400">
+                {{ t('settings.ai.session.batchRegenerateConfirmWarning') }}
+              </p>
+            </div>
+          </div>
+
+          <div class="mt-5 flex justify-end gap-2">
+            <UButton variant="ghost" @click="showRegenerateConfirm = false">
+              {{ t('common.cancel') }}
+            </UButton>
+            <UButton color="error" @click="confirmRegenerateAll">
+              {{ t('settings.ai.session.batchRegenerate') }}
+            </UButton>
+          </div>
+        </div>
+      </template>
+    </UModal>
   </div>
 </template>
diff --git a/src/i18n/locales/en-US/settings.json b/src/i18n/locales/en-US/settings.json
index 008afcc3..81ebf0ca 100644
--- a/src/i18n/locales/en-US/settings.json
+++ b/src/i18n/locales/en-US/settings.json
@@ -277,6 +277,9 @@
       "loadingStatus": "Loading...",
       "batchGenerate": "Generate Missing",
       "batchRegenerate": "Regenerate All",
+      "batchRegenerateConfirmTitle": "Confirm Regeneration",
+      "batchRegenerateConfirmMessage": "This will clear all existing AI summaries and regenerate session indexes from scratch.",
+      "batchRegenerateConfirmWarning": "Existing summaries will be overwritten. This action cannot be undone.",
       "summaryStrategy": "Summary Detail Level",
       "summaryStrategyHelp": "Controls how detailed AI-generated summaries will be",
       "summaryBrief": "Brief",
diff --git a/src/i18n/locales/ja-JP/settings.json b/src/i18n/locales/ja-JP/settings.json
index 02ee84af..846a7b76 100644
--- a/src/i18n/locales/ja-JP/settings.json
+++ b/src/i18n/locales/ja-JP/settings.json
@@ -277,6 +277,9 @@
       "loadingStatus": "読み込み中...",
       "batchGenerate": "未生成分を作成",
       "batchRegenerate": "すべて再生成",
+      "batchRegenerateConfirmTitle": "再生成の確認",
+      "batchRegenerateConfirmMessage": "この操作により、既存のAI要約がすべてクリアされ、セッションインデックスが最初から再生成されます。",
+      "batchRegenerateConfirmWarning": "既存の要約は上書きされます。この操作は取り消せません。",
       "summaryStrategy": "要約の詳細度",
       "summaryStrategyHelp": "AI が要約を生成する際の詳細さを設定します",
       "summaryBrief": "簡潔",
diff --git a/src/i18n/locales/zh-CN/settings.json b/src/i18n/locales/zh-CN/settings.json
index 074cfef9..7404e6d6 100644
--- a/src/i18n/locales/zh-CN/settings.json
+++ b/src/i18n/locales/zh-CN/settings.json
@@ -277,6 +277,9 @@
       "loadingStatus": "加载中...",
       "batchGenerate": "生成未索引",
       "batchRegenerate": "全部重新生成",
+      "batchRegenerateConfirmTitle": "确认重新生成",
+      "batchRegenerateConfirmMessage": "此操作将清空所有已生成的 AI 摘要，并重新生成全部会话索引。",
+      "batchRegenerateConfirmWarning": "已有的摘要内容将被覆盖，此操作不可撤销。",
       "summaryStrategy": "摘要详细程度",
       "summaryStrategyHelp": "影响 AI 生成摘要时的详细程度",
       "summaryBrief": "简要",
diff --git a/src/i18n/locales/zh-TW/settings.json b/src/i18n/locales/zh-TW/settings.json
index e50bca19..ae6baac2 100644
--- a/src/i18n/locales/zh-TW/settings.json
+++ b/src/i18n/locales/zh-TW/settings.json
@@ -277,6 +277,9 @@
       "loadingStatus": "載入中...",
       "batchGenerate": "產生未索引項目",
       "batchRegenerate": "全部重新產生",
+      "batchRegenerateConfirmTitle": "確認重新產生",
+      "batchRegenerateConfirmMessage": "此操作將清空所有已產生的 AI 摘要，並重新產生全部會話索引。",
+      "batchRegenerateConfirmWarning": "已有的摘要內容將被覆蓋，此操作不可撤銷。",
       "summaryStrategy": "摘要詳細程度",
       "summaryStrategyHelp": "影響 AI 生成摘要時的詳細程度",
       "summaryBrief": "簡要",