diff --git a/packages/shared/data/preference/preferenceSchemas.ts b/packages/shared/data/preference/preferenceSchemas.ts
index a9615a828d..90283f64f3 100644
--- a/packages/shared/data/preference/preferenceSchemas.ts
+++ b/packages/shared/data/preference/preferenceSchemas.ts
@@ -397,6 +397,8 @@ export interface PreferenceSchemas {
     'topic.tab.show_time': boolean
     // redux/translate/settings
     'translate.settings.auto_copy': boolean
+    // indexedDB/translate
+    'translate.settings.auto_detection_method': PreferenceTypes.AutoDetectionMethod
     // redux/settings/customCss
     'ui.custom_css': string
     // redux/settings/navbarPosition
@@ -657,6 +659,7 @@ export const DefaultPreferences: PreferenceSchemas = {
     'topic.tab.show': true,
     'topic.tab.show_time': false,
     'translate.settings.auto_copy': false,
+    'translate.settings.auto_detection_method': 'franc',
     'ui.custom_css': '',
     'ui.navbar.position': 'top',
     'ui.sidebar.icons.invisible': [],
diff --git a/packages/shared/data/preference/preferenceTypes.ts b/packages/shared/data/preference/preferenceTypes.ts
index a02e57cbcd..d0c990032f 100644
--- a/packages/shared/data/preference/preferenceTypes.ts
+++ b/packages/shared/data/preference/preferenceTypes.ts
@@ -1,3 +1,5 @@
+import * as z from 'zod'
+
 import type { PreferenceSchemas } from './preferenceSchemas'
 
 export type PreferenceDefaultScopeType = PreferenceSchemas['default']
@@ -85,3 +87,9 @@ export type ChatMessageNavigationMode = 'none' | 'buttons' | 'anchor'
 export type MultiModelMessageStyle = 'horizontal' | 'vertical' | 'fold' | 'grid'
 
 export type MultiModelGridPopoverTrigger = 'hover' | 'click'
+
+const AutoDetectionMethodSchema = z.enum(['franc', 'llm', 'auto'])
+export type AutoDetectionMethod = z.infer<typeof AutoDetectionMethodSchema>
+export const isAutoDetectionMethod = (method: string): method is AutoDetectionMethod => {
+  return AutoDetectionMethodSchema.safeParse(method).success
+}
diff --git a/src/renderer/src/pages/translate/TranslatePage.tsx b/src/renderer/src/pages/translate/TranslatePage.tsx
index 3174c47d7b..53f12ae9cc 100644
--- a/src/renderer/src/pages/translate/TranslatePage.tsx
+++ b/src/renderer/src/pages/translate/TranslatePage.tsx
@@ -22,13 +22,7 @@ import { estimateTextTokens } from '@renderer/services/TokenService'
 import { saveTranslateHistory, translateText } from '@renderer/services/TranslateService'
 // import { setTranslateAbortKey, setTranslating as setTranslatingAction } from '@renderer/store/runtime'
 import type { FileMetadata, SupportedOcrFile } from '@renderer/types'
-import {
-  type AutoDetectionMethod,
-  isSupportedOcrFile,
-  type Model,
-  type TranslateHistory,
-  type TranslateLanguage
-} from '@renderer/types'
+import { isSupportedOcrFile, type Model, type TranslateHistory, type TranslateLanguage } from '@renderer/types'
 import { getFileExtension, isTextFile, runAsyncFunction } from '@renderer/utils'
 import { abortCompletion } from '@renderer/utils/abortController'
 import { isAbortError } from '@renderer/utils/error'
@@ -91,7 +85,6 @@ const TranslatePage: FC = () => {
   const [detectedLanguage, setDetectedLanguage] = useState<TranslateLanguage | null>(null)
   const [sourceLanguage, setSourceLanguage] = useState<TranslateLanguage | 'auto'>(_sourceLanguage)
   const [targetLanguage, setTargetLanguage] = useState<TranslateLanguage>(_targetLanguage)
-  const [autoDetectionMethod, setAutoDetectionMethod] = useState<AutoDetectionMethod>('franc')
   const [isProcessing, setIsProcessing] = useState(false)
 
   // ref
@@ -374,29 +367,9 @@ const TranslatePage: FC = () => {
 
       const markdownSetting = await db.settings.get({ id: 'translate:markdown:enabled' })
       setEnableMarkdown(markdownSetting ? markdownSetting.value : false)
-
-      const autoDetectionMethodSetting = await db.settings.get({ id: 'translate:detect:method' })
-
-      if (autoDetectionMethodSetting) {
-        setAutoDetectionMethod(autoDetectionMethodSetting.value)
-      } else {
-        setAutoDetectionMethod('franc')
-        db.settings.put({ id: 'translate:detect:method', value: 'franc' })
-      }
     })
   }, [getLanguageByLangcode])
 
-  // 控制设置同步
-  const updateAutoDetectionMethod = async (method: AutoDetectionMethod) => {
-    try {
-      await db.settings.put({ id: 'translate:detect:method', value: method })
-      setAutoDetectionMethod(method)
-    } catch (e) {
-      logger.error('Failed to update auto detection method setting.', e as Error)
-      window.toast.error(t('translate.error.detect.update_setting') + formatErrorMessage(e))
-    }
-  }
-
   // 控制Enter触发翻译
   const onKeyDown = (e: React.KeyboardEvent<HTMLTextAreaElement>) => {
     const isEnterPressed = e.key === 'Enter'
@@ -802,8 +775,6 @@ const TranslatePage: FC = () => {
         bidirectionalPair={bidirectionalPair}
         setBidirectionalPair={setBidirectionalPair}
         translateModel={translateModel}
-        autoDetectionMethod={autoDetectionMethod}
-        setAutoDetectionMethod={updateAutoDetectionMethod}
       />
     </Container>
   )
diff --git a/src/renderer/src/pages/translate/TranslateSettings.tsx b/src/renderer/src/pages/translate/TranslateSettings.tsx
index 8b1a29a9ef..912232c693 100644
--- a/src/renderer/src/pages/translate/TranslateSettings.tsx
+++ b/src/renderer/src/pages/translate/TranslateSettings.tsx
@@ -3,7 +3,7 @@ import { usePreference } from '@data/hooks/usePreference'
 import LanguageSelect from '@renderer/components/LanguageSelect'
 import db from '@renderer/databases'
 import useTranslate from '@renderer/hooks/useTranslate'
-import type { AutoDetectionMethod, Model, TranslateLanguage } from '@renderer/types'
+import type { Model, TranslateLanguage } from '@renderer/types'
 import { Modal, Radio, Space } from 'antd'
 import type { FC } from 'react'
 import { memo, useEffect, useState } from 'react'
@@ -24,8 +24,6 @@ const TranslateSettings: FC<{
   bidirectionalPair: [TranslateLanguage, TranslateLanguage]
   setBidirectionalPair: (value: [TranslateLanguage, TranslateLanguage]) => void
   translateModel: Model | undefined
-  autoDetectionMethod: AutoDetectionMethod
-  setAutoDetectionMethod: (method: AutoDetectionMethod) => void
 }> = ({
   visible,
   onClose,
@@ -36,14 +34,13 @@ const TranslateSettings: FC<{
   enableMarkdown,
   setEnableMarkdown,
   bidirectionalPair,
-  setBidirectionalPair,
-  autoDetectionMethod,
-  setAutoDetectionMethod
+  setBidirectionalPair
 }) => {
   const { t } = useTranslation()
   const [localPair, setLocalPair] = useState<[TranslateLanguage, TranslateLanguage]>(bidirectionalPair)
   const { getLanguageByLangcode } = useTranslate()
   const [autoCopy, setAutoCopy] = usePreference('translate.settings.auto_copy')
+  const [autoDetectionMethod, setAutoDetectionMethod] = usePreference('translate.settings.auto_detection_method')
 
   useEffect(() => {
     setLocalPair(bidirectionalPair)
diff --git a/src/renderer/src/types/index.ts b/src/renderer/src/types/index.ts
index d0540a69b2..caacb44ebb 100644
--- a/src/renderer/src/types/index.ts
+++ b/src/renderer/src/types/index.ts
@@ -507,18 +507,6 @@ export type CustomTranslateLanguage = {
   emoji: string
 }
 
-export const AutoDetectionMethods = {
-  franc: 'franc',
-  llm: 'llm',
-  auto: 'auto'
-} as const
-
-export type AutoDetectionMethod = keyof typeof AutoDetectionMethods
-
-export const isAutoDetectionMethod = (method: string): method is AutoDetectionMethod => {
-  return Object.hasOwn(AutoDetectionMethods, method)
-}
-
 // by fullex @ data refactor
 // export type SidebarIcon =
 //   | 'assistants'