diff --git a/ui/env.d.ts b/ui/env.d.ts
index be1f8389d..08bb5e826 100644
--- a/ui/env.d.ts
+++ b/ui/env.d.ts
@@ -1,5 +1,7 @@
 /// <reference types="vite/client" />
 declare module 'element-plus/dist/locale/zh-cn.mjs'
+declare module 'element-plus/dist/locale/en.mjs'
+declare module 'element-plus/dist/locale/zh-tw.mjs'
 declare module 'markdown-it-task-lists'
 declare module 'markdown-it-abbr'
 declare module 'markdown-it-anchor'
diff --git a/ui/src/components/ai-chat/component/control/index.vue b/ui/src/components/ai-chat/component/control/index.vue
index 9827149f4..9674a7452 100644
--- a/ui/src/components/ai-chat/component/control/index.vue
+++ b/ui/src/components/ai-chat/component/control/index.vue
@@ -16,7 +16,7 @@ import bus from '@/bus'
 import { ref, nextTick, onMounted } from 'vue'
 import { t } from '@/locales'
 const isOpen = ref<boolean>(false)
-const eventVal = ref()
+const eventVal = ref<any>({})
 function getSelection() {
   const selection = window.getSelection()
   if (selection && selection.anchorNode == null) {
diff --git a/ui/src/main.ts b/ui/src/main.ts
index a93fe9ea9..69e220b78 100644
--- a/ui/src/main.ts
+++ b/ui/src/main.ts
@@ -2,6 +2,8 @@ import '@/styles/index.scss'
 import ElementPlus from 'element-plus'
 import * as ElementPlusIcons from '@element-plus/icons-vue'
 import zhCn from 'element-plus/dist/locale/zh-cn.mjs'
+import enUs from 'element-plus/dist/locale/en.mjs'
+import zhTW from 'element-plus/dist/locale/zh-tw.mjs'
 import { createApp } from 'vue'
 import { store } from '@/stores'
 import directives from '@/directives'
@@ -10,7 +12,6 @@ import router from '@/router'
 import Components from '@/components'
 import i18n from './locales'
 import { config } from 'md-editor-v3'
-
 import screenfull from 'screenfull'
 
 import katex from 'katex'
@@ -51,8 +52,13 @@ app.use(directives)
 for (const [key, component] of Object.entries(ElementPlusIcons)) {
   app.component(key, component)
 }
+const locale_map: any = {
+  'zh-CN': zhCn,
+  'zh-Hant': zhTW,
+  'en-US': enUs
+}
 app.use(ElementPlus, {
-  locale: zhCn
+  locale: locale_map[localStorage.getItem('MaxKB-locale') || 'zh-CN']
 })
 
 app.use(router)
diff --git a/ui/src/request/index.ts b/ui/src/request/index.ts
index 56a491518..d57928219 100644
--- a/ui/src/request/index.ts
+++ b/ui/src/request/index.ts
@@ -25,6 +25,8 @@ instance.interceptors.request.use(
     }
     const { user } = useStore()
     const token = user.getToken()
+    const language = user.getLanguage()
+    config.headers['Accept-Language'] = `${language}`
     if (token) {
       config.headers['AUTHORIZATION'] = `${token}`
     }
@@ -208,7 +210,7 @@ export const postStream: (url: string, data?: unknown) => Promise<Result<any> |
   if (token) {
     headers['AUTHORIZATION'] = `${token}`
   }
-   headers['Accept-Language'] = `${language}`
+  headers['Accept-Language'] = `${language}`
   return fetch(url, {
     method: 'POST',
     body: data ? JSON.stringify(data) : undefined,
diff --git a/ui/src/stores/modules/application.ts b/ui/src/stores/modules/application.ts
index 359f952b5..3d30e62dd 100644
--- a/ui/src/stores/modules/application.ts
+++ b/ui/src/stores/modules/application.ts
@@ -4,12 +4,10 @@ import applicationXpackApi from '@/api/application-xpack'
 import { type Ref } from 'vue'
 
 import useUserStore from './user'
-
 const useApplicationStore = defineStore({
   id: 'application',
   state: () => ({
-    location: `${window.location.origin}/ui/chat/`,
-    userLanguage: ''
+    location: `${window.location.origin}/ui/chat/`
   }),
   actions: {
     async asyncGetAllApplication() {
@@ -80,9 +78,10 @@ const useApplicationStore = defineStore({
       return new Promise((resolve, reject) => {
         applicationApi
           .getAppProfile(loading)
-          .then((data) => {
-            this.userLanguage = data.data?.language
-            resolve(data)
+          .then((res) => {
+            sessionStorage.setItem('language', res.data?.language)
+
+            resolve(res)
           })
           .catch((error) => {
             reject(error)
diff --git a/ui/src/stores/modules/user.ts b/ui/src/stores/modules/user.ts
index 740e0cd22..0be566b12 100644
--- a/ui/src/stores/modules/user.ts
+++ b/ui/src/stores/modules/user.ts
@@ -6,7 +6,6 @@ import UserApi from '@/api/user'
 import ThemeApi from '@/api/theme'
 import { useElementPlusTheme } from 'use-element-plus-theme'
 import { defaultPlatformSetting } from '@/utils/theme'
-import useApplicationStore from './application'
 import { useLocalStorage } from '@vueuse/core'
 import { localeConfigKey } from '@/locales/index'
 export interface userStateTypes {
@@ -33,10 +32,9 @@ const useUserStore = defineStore({
   }),
   actions: {
     getLanguage() {
-      const application = useApplicationStore()
       return this.userType === 1
-        ? this.userInfo?.language || localStorage.getItem('language')
-        : application?.userLanguage
+        ? localStorage.getItem('MaxKB-locale')
+        : sessionStorage.getItem('language')
     },
     showXpack() {
       return this.isXPack
@@ -127,7 +125,6 @@ const useUserStore = defineStore({
       return UserApi.profile().then(async (ok) => {
         this.userInfo = ok.data
         useLocalStorage(localeConfigKey, 'zh-CN').value = ok.data?.language
-        // localStorage.setItem('language', ok.data?.language)
         return this.asyncGetProfile()
       })
     },
@@ -174,8 +171,8 @@ const useUserStore = defineStore({
       return new Promise((resolve, reject) => {
         UserApi.postLanguage({ language: lang }, loading)
           .then(async (ok) => {
+            useLocalStorage(localeConfigKey, 'zh-CN').value = lang
             window.location.reload()
-
             resolve(ok)
           })
           .catch((error) => {
diff --git a/ui/src/views/chat/index.vue b/ui/src/views/chat/index.vue
index 36b8e4473..89bff9b06 100644
--- a/ui/src/views/chat/index.vue
+++ b/ui/src/views/chat/index.vue
@@ -24,6 +24,8 @@ import { useRoute } from 'vue-router'
 import useStore from '@/stores'
 import Auth from '@/views/chat/auth/index.vue'
 import { hexToRgba } from '@/utils/theme'
+import { useI18n } from 'vue-i18n'
+const { locale } = useI18n({ useScope: 'global' })
 const route = useRoute()
 const { application, user } = useStore()
 
@@ -78,6 +80,7 @@ const init_data_end = ref<boolean>(false)
 const applicationAvailable = ref<boolean>(true)
 function getAppProfile() {
   return application.asyncGetAppProfile(loading).then((res: any) => {
+    locale.value = res.data?.language
     show_history.value = res.data?.show_history
     application_profile.value = res.data
   })
diff --git a/ui/src/views/login/index.vue b/ui/src/views/login/index.vue
index 3b1c9e8a4..67e15a698 100644
--- a/ui/src/views/login/index.vue
+++ b/ui/src/views/login/index.vue
@@ -106,8 +106,11 @@ import type { FormInstance, FormRules } from 'element-plus'
 import useStore from '@/stores'
 import authApi from '@/api/auth-setting'
 import { MsgConfirm, MsgSuccess } from '@/utils/message'
+
 import { t } from '@/locales'
 import QrCodeTab from '@/views/login/components/QrCodeTab.vue'
+import { useI18n } from 'vue-i18n'
+const { locale } = useI18n({ useScope: 'global' })
 const loading = ref<boolean>(false)
 const { user } = useStore()
 const router = useRouter()
@@ -212,6 +215,7 @@ const login = () => {
     user
       .login(loginMode.value, loginForm.value.username, loginForm.value.password)
       .then(() => {
+        locale.value = localStorage.getItem('MaxKB-locale') || 'zh-CN'
         router.push({ name: 'home' })
       })
       .finally(() => (loading.value = false))