diff --git a/src/main/presenter/syncPresenter/index.ts b/src/main/presenter/syncPresenter/index.ts
index f4422b573..208fd9826 100644
--- a/src/main/presenter/syncPresenter/index.ts
+++ b/src/main/presenter/syncPresenter/index.ts
@@ -1,6 +1,7 @@
 import { app, shell } from 'electron'
 import path from 'path'
 import fs from 'fs'
+import Database from 'better-sqlite3-multiple-ciphers'
 import { ISyncPresenter, IConfigPresenter, ISQLitePresenter } from '@shared/presenter'
 import { eventBus, SendTarget } from '@/eventbus'
 import { SYNC_EVENTS } from '@/events'
@@ -121,7 +122,13 @@ export class SyncPresenter implements ISyncPresenter {
    */
   public async importFromSync(
     importMode: ImportMode = ImportMode.INCREMENT
-  ): Promise<{ success: boolean; message: string }> {
+  ): Promise<{ success: boolean; message: string; count?: number }> {
+    // Cancel any pending backup to prevent overwriting the backup files during import
+    if (this.backupTimer) {
+      clearTimeout(this.backupTimer)
+      this.backupTimer = null
+    }
+
     // 检查同步文件夹是否存在
     const { exists, path: syncFolderPath } = await this.checkSyncFolder()
     if (!exists) {
@@ -174,13 +181,22 @@ export class SyncPresenter implements ISyncPresenter {
         this.copyDirectory(this.PROVIDER_MODELS_DIR_PATH, tempProviderModelsPath)
       }
 
+      let importedCount = 0
       try {
         if (importMode === ImportMode.OVERWRITE) {
+          // For overwrite mode, count conversations from backup db in read-only mode
+          const backupDb = new Database(dbBackupPath, { readonly: true })
+          const result = backupDb.prepare('SELECT COUNT(*) as count FROM conversations').get() as {
+            count: number
+          }
+          importedCount = result.count
+          backupDb.close()
+
           fs.copyFileSync(dbBackupPath, this.DB_PATH)
         } else {
-          // 使用 DataImporter 导入数据
+          // For incremental mode, DataImporter returns the actual imported count
           const importer = new DataImporter(dbBackupPath, this.DB_PATH)
-          const importedCount = await importer.importData()
+          importedCount = await importer.importData()
           console.log(`成功导入 ${importedCount} 个会话`)
           importer.close()
         }
@@ -229,7 +245,7 @@ export class SyncPresenter implements ISyncPresenter {
         }
 
         eventBus.send(SYNC_EVENTS.IMPORT_COMPLETED, SendTarget.ALL_WINDOWS)
-        return { success: true, message: 'sync.success.importComplete' }
+        return { success: true, message: 'sync.success.importComplete', count: importedCount }
       } catch (error: unknown) {
         console.error('导入文件失败，恢复备份:', error)
 
diff --git a/src/renderer/settings/components/DataSettings.vue b/src/renderer/settings/components/DataSettings.vue
index 97a7ea242..d5bd883e1 100644
--- a/src/renderer/settings/components/DataSettings.vue
+++ b/src/renderer/settings/components/DataSettings.vue
@@ -67,12 +67,7 @@
         <!-- 导入数据 -->
         <Dialog v-model:open="isImportDialogOpen">
           <DialogTrigger as-child>
-            <Button
-              variant="outline"
-              @click="syncStore.startBackup"
-              :disabled="!syncStore.syncEnabled"
-              :dir="languageStore.dir"
-            >
+            <Button variant="outline" :disabled="!syncStore.syncEnabled" :dir="languageStore.dir">
               <Icon icon="lucide:download" class="w-4 h-4 text-muted-foreground" />
               <span class="text-sm font-medium">{{ t('settings.data.importData') }}</span>
             </Button>
@@ -219,7 +214,11 @@
                 : t('settings.data.importErrorTitle')
             }}</AlertDialogTitle>
             <AlertDialogDescription>
-              {{ syncStore.importResult?.message ? t(syncStore.importResult.message) : '' }}
+              {{
+                syncStore.importResult?.message
+                  ? t(syncStore.importResult.message, { count: syncStore.importResult.count || 0 })
+                  : ''
+              }}
             </AlertDialogDescription>
           </AlertDialogHeader>
           <AlertDialogFooter>
diff --git a/src/renderer/src/i18n/en-US/sync.json b/src/renderer/src/i18n/en-US/sync.json
index af5f8bccc..07295cc5c 100644
--- a/src/renderer/src/i18n/en-US/sync.json
+++ b/src/renderer/src/i18n/en-US/sync.json
@@ -1,6 +1,6 @@
 {
   "success": {
-    "importComplete": "Import complete. The application will now restart."
+    "importComplete": "Successfully imported {count} conversation(s). The application will now restart."
   },
   "error": {
     "notEnabled": "Sync is not enabled",
diff --git a/src/renderer/src/i18n/fa-IR/sync.json b/src/renderer/src/i18n/fa-IR/sync.json
index b70504028..5902773be 100644
--- a/src/renderer/src/i18n/fa-IR/sync.json
+++ b/src/renderer/src/i18n/fa-IR/sync.json
@@ -1,6 +1,6 @@
 {
   "success": {
-    "importComplete": "داده با موفقیت وارد شد. برای راه‌اندازی دوباره برنامه، روی دکمه خوب بزنید."
+    "importComplete": "{count} مکالمه با موفقیت وارد شد. برای راه‌اندازی دوباره برنامه، روی دکمه خوب بزنید."
   },
   "error": {
     "notEnabled": "ویژگی همگام‌سازی روشن نیست",
diff --git a/src/renderer/src/i18n/fr-FR/sync.json b/src/renderer/src/i18n/fr-FR/sync.json
index 6e3872241..07b5fa03d 100644
--- a/src/renderer/src/i18n/fr-FR/sync.json
+++ b/src/renderer/src/i18n/fr-FR/sync.json
@@ -1,6 +1,6 @@
 {
   "success": {
-    "importComplete": "Données importées avec succès. Cliquez sur OK pour redémarrer l'application."
+    "importComplete": "{count} conversation(s) importée(s) avec succès. Cliquez sur OK pour redémarrer l'application."
   },
   "error": {
     "notEnabled": "La fonction de synchronisation n'est pas activée",
diff --git a/src/renderer/src/i18n/ja-JP/sync.json b/src/renderer/src/i18n/ja-JP/sync.json
index e65c46123..dd278b1e3 100644
--- a/src/renderer/src/i18n/ja-JP/sync.json
+++ b/src/renderer/src/i18n/ja-JP/sync.json
@@ -1,6 +1,6 @@
 {
   "success": {
-    "importComplete": "データのインポートが完了しました。OKをクリックして、アプリケーションを再起動します。"
+    "importComplete": "{count}件の会話をインポートしました。OKをクリックして、アプリケーションを再起動します。"
   },
   "error": {
     "notEnabled": "同期機能が有効になっていません",
diff --git a/src/renderer/src/i18n/ko-KR/sync.json b/src/renderer/src/i18n/ko-KR/sync.json
index 9ae57fd34..366d84a95 100644
--- a/src/renderer/src/i18n/ko-KR/sync.json
+++ b/src/renderer/src/i18n/ko-KR/sync.json
@@ -1,6 +1,6 @@
 {
   "success": {
-    "importComplete": "데이터가 성공적으로 가져와졌습니다. 애플리케이션을 다시 시작하려면 확인을 클릭하세요."
+    "importComplete": "{count}개의 대화를 성공적으로 가져왔습니다. 애플리케이션을 다시 시작하려면 확인을 클릭하세요."
   },
   "error": {
     "notEnabled": "동기화 기능이 활성화되지 않았습니다",
diff --git a/src/renderer/src/i18n/pt-BR/sync.json b/src/renderer/src/i18n/pt-BR/sync.json
index 5699995d8..50f01e576 100644
--- a/src/renderer/src/i18n/pt-BR/sync.json
+++ b/src/renderer/src/i18n/pt-BR/sync.json
@@ -1,6 +1,6 @@
 {
   "success": {
-    "importComplete": "Importação concluída. O aplicativo será reiniciado agora."
+    "importComplete": "{count} conversa(s) importada(s) com sucesso. O aplicativo será reiniciado agora."
   },
   "error": {
     "notEnabled": "A sincronização não está ativada",
diff --git a/src/renderer/src/i18n/ru-RU/sync.json b/src/renderer/src/i18n/ru-RU/sync.json
index 10630ebaa..b5e006a53 100644
--- a/src/renderer/src/i18n/ru-RU/sync.json
+++ b/src/renderer/src/i18n/ru-RU/sync.json
@@ -1,6 +1,6 @@
 {
   "success": {
-    "importComplete": "Данные успешно импортированы. Нажмите OK для перезапуска приложения."
+    "importComplete": "Успешно импортировано {count} диалогов. Нажмите OK для перезапуска приложения."
   },
   "error": {
     "notEnabled": "Функция синхронизации не включена",
diff --git a/src/renderer/src/i18n/zh-CN/sync.json b/src/renderer/src/i18n/zh-CN/sync.json
index 3b6142d49..a015922b0 100644
--- a/src/renderer/src/i18n/zh-CN/sync.json
+++ b/src/renderer/src/i18n/zh-CN/sync.json
@@ -1,6 +1,6 @@
 {
   "success": {
-    "importComplete": "数据导入成功，点击确定后将重启应用"
+    "importComplete": "成功导入 {count} 个对话，点击确定后将重启应用"
   },
   "error": {
     "notEnabled": "同步功能未启用",
diff --git a/src/renderer/src/i18n/zh-HK/sync.json b/src/renderer/src/i18n/zh-HK/sync.json
index b97f96406..9b9ec1906 100644
--- a/src/renderer/src/i18n/zh-HK/sync.json
+++ b/src/renderer/src/i18n/zh-HK/sync.json
@@ -1,6 +1,6 @@
 {
   "success": {
-    "importComplete": "數據導入成功，點擊確定後將重新啟動應用"
+    "importComplete": "成功導入 {count} 個對話，點擊確定後將重新啟動應用"
   },
   "error": {
     "notEnabled": "同步功能未啟用",
diff --git a/src/renderer/src/i18n/zh-TW/sync.json b/src/renderer/src/i18n/zh-TW/sync.json
index 5046efafa..89f0d4ee9 100644
--- a/src/renderer/src/i18n/zh-TW/sync.json
+++ b/src/renderer/src/i18n/zh-TW/sync.json
@@ -1,6 +1,6 @@
 {
   "success": {
-    "importComplete": "資料匯入成功，點選「確定」後將重新啟動應用程式"
+    "importComplete": "成功匯入 {count} 個對話，點選「確定」後將重新啟動應用程式"
   },
   "error": {
     "notEnabled": "同步功能未啟用",
diff --git a/src/renderer/src/stores/sync.ts b/src/renderer/src/stores/sync.ts
index c99164456..f6be79f21 100644
--- a/src/renderer/src/stores/sync.ts
+++ b/src/renderer/src/stores/sync.ts
@@ -10,7 +10,7 @@ export const useSyncStore = defineStore('sync', () => {
   const lastSyncTime = ref(0)
   const isBackingUp = ref(false)
   const isImporting = ref(false)
-  const importResult = ref<{ success: boolean; message: string } | null>(null)
+  const importResult = ref<{ success: boolean; message: string; count?: number } | null>(null)
 
   // 获取 presenter 实例
   const configPresenter = usePresenter('configPresenter')
diff --git a/src/shared/types/presenters/legacy.presenters.d.ts b/src/shared/types/presenters/legacy.presenters.d.ts
index 7d787fa6a..b18ef014a 100644
--- a/src/shared/types/presenters/legacy.presenters.d.ts
+++ b/src/shared/types/presenters/legacy.presenters.d.ts
@@ -1339,7 +1339,9 @@ export interface ISyncPresenter {
   getBackupStatus(): Promise<{ isBackingUp: boolean; lastBackupTime: number }>
 
   // Import related operations
-  importFromSync(importMode?: ImportMode): Promise<{ success: boolean; message: string }>
+  importFromSync(
+    importMode?: ImportMode
+  ): Promise<{ success: boolean; message: string; count?: number }>
   checkSyncFolder(): Promise<{ exists: boolean; path: string }>
   openSyncFolder(): Promise<void>