diff --git a/package.json b/package.json
index 08683e0f83..78951e0336 100644
--- a/package.json
+++ b/package.json
@@ -75,6 +75,7 @@
     "@types/react-infinite-scroll-component": "^5.0.0",
     "archiver": "^7.0.1",
     "async-mutex": "^0.5.0",
+    "cld3-asm": "^4.0.0",
     "diff": "^7.0.0",
     "docx": "^9.0.2",
     "electron-log": "^5.1.5",
@@ -83,7 +84,6 @@
     "electron-window-state": "^5.0.3",
     "epub": "patch:epub@npm%3A1.3.0#~/.yarn/patches/epub-npm-1.3.0-8325494ffe.patch",
     "fast-xml-parser": "^5.2.0",
-    "franc": "^6.2.0",
     "fs-extra": "^11.2.0",
     "jsdom": "^26.0.0",
     "markdown-it": "^14.1.0",
diff --git a/src/renderer/src/pages/translate/TranslatePage.tsx b/src/renderer/src/pages/translate/TranslatePage.tsx
index 656c73b5bd..76f259a4fe 100644
--- a/src/renderer/src/pages/translate/TranslatePage.tsx
+++ b/src/renderer/src/pages/translate/TranslatePage.tsx
@@ -16,8 +16,7 @@ import {
   createInputScrollHandler,
   createOutputScrollHandler,
   detectLanguage,
-  getTargetLanguageForBidirectional,
-  isLanguageInPair
+  determineTargetLanguage
 } from '@renderer/utils/translate'
 import { Button, Empty, Flex, Modal, Popconfirm, Select, Space, Switch, Tooltip } from 'antd'
 import TextArea, { TextAreaRef } from 'antd/es/input/TextArea'
@@ -290,30 +289,26 @@ const TranslatePage: FC = () => {
     setLoading(true)
     try {
       const sourceLanguage = await detectLanguage(text)
-      console.log('检测到的源语言:', sourceLanguage)
+      const result = determineTargetLanguage(sourceLanguage, targetLanguage, isBidirectional, bidirectionalPair)
+      if (!result.success) {
+        let errorMessage = ''
+        if (result.errorType === 'same_language') {
+          errorMessage = t('translate.language.same')
+        } else if (result.errorType === 'not_in_pair') {
+          errorMessage = t('translate.language.not_pair')
+        }
 
-      let actualTargetLanguage = targetLanguage
+        window.message.warning({
+          content: errorMessage,
+          key: 'translate-message'
+        })
+        setLoading(false)
+        return
+      }
 
+      const actualTargetLanguage = result.language as string
       if (isBidirectional) {
-        if (!isLanguageInPair(sourceLanguage, bidirectionalPair)) {
-          window.message.warning({
-            content: t('translate.language.not_pair'),
-            key: 'translate-message'
-          })
-          setLoading(false)
-          return
-        }
-        actualTargetLanguage = getTargetLanguageForBidirectional(sourceLanguage, bidirectionalPair)
         setTargetLanguage(actualTargetLanguage)
-      } else {
-        if (sourceLanguage === targetLanguage) {
-          window.message.warning({
-            content: t('translate.language.same'),
-            key: 'translate-message'
-          })
-          setLoading(false)
-          return
-        }
       }
 
       const assistant = getDefaultTranslateAssistant(actualTargetLanguage, text)
diff --git a/src/renderer/src/utils/translate.ts b/src/renderer/src/utils/translate.ts
index e4df23d392..2b44f3ec26 100644
--- a/src/renderer/src/utils/translate.ts
+++ b/src/renderer/src/utils/translate.ts
@@ -1,7 +1,74 @@
-import { fetchTranslate } from '@renderer/services/ApiService'
-import { franc } from 'franc'
+import * as cld3 from 'cld3-asm'
 import React, { MutableRefObject } from 'react'
 
+let langIdentifier: any = null
+
+/**
+ * 初始化语言识别器
+ */
+const initLangIdentifier = async () => {
+  if (!langIdentifier) {
+    langIdentifier = await cld3.loadModule()
+  }
+  return langIdentifier
+}
+
+/**
+ * 使用Unicode字符范围检测语言
+ * 适用于较短文本的语言检测
+ * @param {string} text 需要检测语言的文本
+ * @returns {string} 检测到的语言代码
+ */
+export const detectLanguageByUnicode = (text: string): string => {
+  const counts = {
+    zh: 0,
+    ja: 0,
+    ko: 0,
+    ru: 0,
+    ar: 0,
+    latin: 0
+  }
+
+  let totalChars = 0
+
+  for (const char of text) {
+    const code = char.codePointAt(0) || 0
+    totalChars++
+
+    if (code >= 0x4e00 && code <= 0x9fff) {
+      counts.zh++
+    } else if ((code >= 0x3040 && code <= 0x309f) || (code >= 0x30a0 && code <= 0x30ff)) {
+      counts.ja++
+    } else if ((code >= 0xac00 && code <= 0xd7a3) || (code >= 0x1100 && code <= 0x11ff)) {
+      counts.ko++
+    } else if (code >= 0x0400 && code <= 0x04ff) {
+      counts.ru++
+    } else if (code >= 0x0600 && code <= 0x06ff) {
+      counts.ar++
+    } else if ((code >= 0x0020 && code <= 0x007f) || (code >= 0x0080 && code <= 0x00ff)) {
+      counts.latin++
+    } else {
+      totalChars--
+    }
+  }
+
+  if (totalChars === 0) return 'en'
+  let maxLang = 'en'
+  let maxCount = 0
+
+  for (const [lang, count] of Object.entries(counts)) {
+    if (count > maxCount) {
+      maxCount = count
+      maxLang = lang === 'latin' ? 'en' : lang
+    }
+  }
+
+  if (maxCount / totalChars < 0.3) {
+    return 'en'
+  }
+  return maxLang
+}
+
 /**
  * 检测输入文本的语言
  * @param {string} inputText 需要检测语言的文本
@@ -11,66 +78,38 @@ export const detectLanguage = async (inputText: string): Promise<string> => {
   if (!inputText.trim()) return 'any'
 
   const text = inputText.trim()
-  const detectedLangCode = franc(text)
 
-  // 映射 ISO 639-3 代码到应用使用的语言代码
+  // 由于算法的局限性会导致对较短的字符串识别不准确
+  let detected
+  if (text.length < 20) {
+    detected = detectLanguageByUnicode(text)
+  } else {
+    const identifier = await initLangIdentifier()
+    const result = identifier.findLanguage(text)
+    detected = result.reliable ? result.language : 'en'
+  }
+  console.log(detected)
+  const topLang = detected || 'en'
+
+  // 映射cld3-asm返回的语言代码到应用使用的语言代码
   const languageMap: Record<string, string> = {
-    cmn: 'chinese', // 普通话
-    zho: 'chinese', // 中文
-    jpn: 'japanese', // 日语
-    kor: 'korean', // 韩语
-    rus: 'russian', // 俄语
-    spa: 'spanish', // 西班牙语
-    fra: 'french', // 法语
-    deu: 'german', // 德语
-    ita: 'italian', // 意大利语
-    por: 'portuguese', // 葡萄牙语
-    ara: 'arabic', // 阿拉伯语
-    eng: 'english' // 英语
+    zh: 'chinese', // 中文
+    ja: 'japanese', // 日语
+    ko: 'korean', // 韩语
+    ru: 'russian', // 俄语
+    es: 'spanish', // 西班牙语
+    fr: 'french', // 法语
+    de: 'german', // 德语
+    it: 'italian', // 意大利语
+    pt: 'portuguese', // 葡萄牙语
+    ar: 'arabic', // 阿拉伯语
+    en: 'english' // 英语
   }
 
-  if (detectedLangCode !== 'und' && languageMap[detectedLangCode]) {
-    return languageMap[detectedLangCode]
-  }
-
-  try {
-    const sampleText = text.substring(0, 200)
-    const prompt = `Identify the primary language in this text: "${sampleText}". Reply with only one word from this list: english, chinese, japanese, korean, russian, spanish, french, german, italian, portuguese, arabic.`
-
-    let detectedCode = ''
-    await fetchTranslate({
-      content: sampleText,
-      assistant: {
-        id: 'lang-detector',
-        name: 'Language Detector',
-        prompt,
-        topics: [],
-        type: 'translator'
-      },
-      onResponse: (response) => {
-        detectedCode = response.trim().toLowerCase()
-      }
-    })
-
-    const validCodes = [
-      'english',
-      'chinese',
-      'japanese',
-      'korean',
-      'russian',
-      'spanish',
-      'french',
-      'german',
-      'italian',
-      'portuguese',
-      'arabic'
-    ]
-
-    return validCodes.find((code) => detectedCode.includes(code)) || 'english'
-  } catch (error) {
-    console.error('语言检测错误:', error)
-    return 'english'
+  if (topLang && languageMap[topLang]) {
+    return languageMap[topLang]
   }
+  return 'english'
 }
 
 /**
@@ -85,9 +124,7 @@ export const getTargetLanguageForBidirectional = (sourceLanguage: string, langua
   } else if (sourceLanguage === languagePair[1]) {
     return languagePair[0]
   }
-
-  // 默认返回第一个不同于源语言的语言
-  return languagePair[0] === sourceLanguage ? languagePair[1] : languagePair[0]
+  return languagePair[0] !== sourceLanguage ? languagePair[0] : languagePair[1]
 }
 
 /**
@@ -100,6 +137,36 @@ export const isLanguageInPair = (sourceLanguage: string, languagePair: [string,
   return [languagePair[0], languagePair[1]].includes(sourceLanguage)
 }
 
+/**
+ * 确定翻译的目标语言
+ * @param sourceLanguage 检测到的源语言
+ * @param targetLanguage 用户设置的目标语言
+ * @param isBidirectional 是否开启双向翻译
+ * @param bidirectionalPair 双向翻译的语言对
+ * @returns 处理结果对象
+ */
+export const determineTargetLanguage = (
+  sourceLanguage: string,
+  targetLanguage: string,
+  isBidirectional: boolean,
+  bidirectionalPair: [string, string]
+): { success: boolean; language?: string; errorType?: 'same_language' | 'not_in_pair' } => {
+  if (isBidirectional) {
+    if (!isLanguageInPair(sourceLanguage, bidirectionalPair)) {
+      return { success: false, errorType: 'not_in_pair' }
+    }
+    return {
+      success: true,
+      language: getTargetLanguageForBidirectional(sourceLanguage, bidirectionalPair)
+    }
+  } else {
+    if (sourceLanguage === targetLanguage) {
+      return { success: false, errorType: 'same_language' }
+    }
+    return { success: true, language: targetLanguage }
+  }
+}
+
 /**
  * 处理滚动同步
  * @param sourceElement 源元素
diff --git a/yarn.lock b/yarn.lock
index 2a7e3f7132..4ce1f78120 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5597,6 +5597,7 @@ __metadata:
     async-mutex: "npm:^0.5.0"
     axios: "npm:^1.7.3"
     browser-image-compression: "npm:^2.0.2"
+    cld3-asm: "npm:^4.0.0"
     color: "npm:^5.0.0"
     dayjs: "npm:^1.11.11"
     dexie: "npm:^4.0.8"
@@ -5621,7 +5622,6 @@ __metadata:
     eslint-plugin-unused-imports: "npm:^4.1.4"
     fast-diff: "npm:^1.3.0"
     fast-xml-parser: "npm:^5.2.0"
-    franc: "npm:^6.2.0"
     fs-extra: "npm:^11.2.0"
     html-to-image: "npm:^1.11.13"
     husky: "npm:^9.1.7"
@@ -6842,6 +6842,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"cld3-asm@npm:^4.0.0":
+  version: 4.0.0
+  resolution: "cld3-asm@npm:4.0.0"
+  dependencies:
+    emscripten-wasm-loader: "npm:^3.0.3"
+  checksum: 10c0/1edd4bad0e0aa68f05910e59aee63598ddce9c0d859de7bd7a60a81e4f20c29718a26a255c78c14c07d86ce78a26f617a54cd8ca777db9cb2d0628f450c298d2
+  languageName: node
+  linkType: hard
+
 "clean-stack@npm:^2.0.0":
   version: 2.2.0
   resolution: "clean-stack@npm:2.2.0"
@@ -8522,6 +8531,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"emscripten-wasm-loader@npm:^3.0.3":
+  version: 3.0.3
+  resolution: "emscripten-wasm-loader@npm:3.0.3"
+  dependencies:
+    getroot: "npm:^1.0.0"
+    nanoid: "npm:^2.0.3"
+    unixify: "npm:^1.0.0"
+  checksum: 10c0/3a171300ff671de0fec5cf239a86fbaa578bbdc3ac2e7d0009499c98496a27276bc76dcf8515d4799237a656763ab98aec21753a8947e51cfe66df28e1296c8b
+  languageName: node
+  linkType: hard
+
 "encodeurl@npm:^2.0.0":
   version: 2.0.0
   resolution: "encodeurl@npm:2.0.0"
@@ -9813,15 +9833,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"franc@npm:^6.2.0":
-  version: 6.2.0
-  resolution: "franc@npm:6.2.0"
-  dependencies:
-    trigram-utils: "npm:^2.0.0"
-  checksum: 10c0/136a08d6e4632f17eae6f0ae93b224b0bf2233dc1d5dbd0b23e479960f6c71c0847bef834d3b6b7c9cefb4f905d5e08fc82b0738bb3ed4a6c83faffcf9fa2a11
-  languageName: node
-  linkType: hard
-
 "fresh@npm:^2.0.0":
   version: 2.0.0
   resolution: "fresh@npm:2.0.0"
@@ -10084,6 +10095,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"getroot@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "getroot@npm:1.0.0"
+  dependencies:
+    tslib: "npm:^1.7.1"
+  checksum: 10c0/06fe0762e8f4076625a136415584cec896fad57338454349df6153e7543f81ae89959e175df7fb2e9def684a982a316db5862ad2d293419f052e5b1be45bc6f1
+  languageName: node
+  linkType: hard
+
 "github-from-package@npm:0.0.0":
   version: 0.0.0
   resolution: "github-from-package@npm:0.0.0"
@@ -13553,10 +13573,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"n-gram@npm:^2.0.0":
-  version: 2.0.2
-  resolution: "n-gram@npm:2.0.2"
-  checksum: 10c0/72e2cdc8c37c9253b556a0deb9cd26d5ac59a5d7a38b2d2928927e3959bc7d3cb591d766e30309a4c685dbc51330025cb30c5c6518ee516caf3318aed2635f1b
+"nanoid@npm:^2.0.3":
+  version: 2.1.11
+  resolution: "nanoid@npm:2.1.11"
+  checksum: 10c0/8640d17698633ff78b2549ec8d5dffd8f56909bad1cf0da08bf3a4012f98553b1b9f2327a2d7fb3613084f33189a8ab4b889eb4c7939f3f9e242d9fd8ff059d5
   languageName: node
   linkType: hard
 
@@ -13787,6 +13807,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"normalize-path@npm:^2.1.1":
+  version: 2.1.1
+  resolution: "normalize-path@npm:2.1.1"
+  dependencies:
+    remove-trailing-separator: "npm:^1.0.1"
+  checksum: 10c0/db814326ff88057437233361b4c7e9cac7b54815b051b57f2d341ce89b1d8ec8cbd43e7fa95d7652b3b69ea8fcc294b89b8530d556a84d1bdace94229e1e9a8b
+  languageName: node
+  linkType: hard
+
 "normalize-path@npm:^3.0.0":
   version: 3.0.0
   resolution: "normalize-path@npm:3.0.0"
@@ -15974,6 +16003,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"remove-trailing-separator@npm:^1.0.1":
+  version: 1.1.0
+  resolution: "remove-trailing-separator@npm:1.1.0"
+  checksum: 10c0/3568f9f8f5af3737b4aee9e6e1e8ec4be65a92da9cb27f989e0893714d50aa95ed2ff02d40d1fa35e1b1a234dc9c2437050ef356704a3999feaca6667d9e9bfc
+  languageName: node
+  linkType: hard
+
 "repeat-string@npm:^1.0.0":
   version: 1.6.1
   resolution: "repeat-string@npm:1.6.1"
@@ -17526,16 +17562,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"trigram-utils@npm:^2.0.0":
-  version: 2.0.1
-  resolution: "trigram-utils@npm:2.0.1"
-  dependencies:
-    collapse-white-space: "npm:^2.0.0"
-    n-gram: "npm:^2.0.0"
-  checksum: 10c0/d024dc91a9c0310e75fa68422185e3a32814831971b9e86a2925e74bd1932a30501aa2ac214768f0a545f3db63610ee14b4748ac31532e1bc46c791941d71c6d
-  languageName: node
-  linkType: hard
-
 "trim-lines@npm:^3.0.0":
   version: 3.0.1
   resolution: "trim-lines@npm:3.0.1"
@@ -17607,6 +17633,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"tslib@npm:^1.7.1":
+  version: 1.14.1
+  resolution: "tslib@npm:1.14.1"
+  checksum: 10c0/69ae09c49eea644bc5ebe1bca4fa4cc2c82b7b3e02f43b84bd891504edf66dbc6b2ec0eef31a957042de2269139e4acff911e6d186a258fb14069cd7f6febce2
+  languageName: node
+  linkType: hard
+
 "tslib@npm:^2.0.1, tslib@npm:^2.1.0, tslib@npm:^2.4.0, tslib@npm:^2.8.1":
   version: 2.8.1
   resolution: "tslib@npm:2.8.1"
@@ -17934,6 +17967,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"unixify@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "unixify@npm:1.0.0"
+  dependencies:
+    normalize-path: "npm:^2.1.1"
+  checksum: 10c0/8b89100619ebde9f0ab4024a4d402316fb7b1d4853723410fc828944e8d3d01480f210cddf94d9a1699559f8180d861eb6323da8011b7bcc1bbaf6a11a5b1f1e
+  languageName: node
+  linkType: hard
+
 "unpipe@npm:1.0.0":
   version: 1.0.0
   resolution: "unpipe@npm:1.0.0"