diff --git a/backend-golang/app.go b/backend-golang/app.go
index deffeab..21a404e 100644
--- a/backend-golang/app.go
+++ b/backend-golang/app.go
@@ -3,8 +3,11 @@ package backend_golang
 import (
 	"context"
 	"net/http"
+	"os"
+	"os/exec"
 
 	"github.com/minio/selfupdate"
+	"github.com/wailsapp/wails/v2/pkg/runtime"
 )
 
 // App struct
@@ -36,5 +39,11 @@ func (a *App) UpdateApp(url string) (broken bool, err error) {
 		}
 		return false, err
 	}
+	name, err := os.Executable()
+	if err != nil {
+		return false, err
+	}
+	exec.Command(name, os.Args[1:]...).Start()
+	runtime.Quit(a.ctx)
 	return false, nil
 }
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index ff1934e..df8c3c6 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -10,10 +10,12 @@
       "dependencies": {
         "@fluentui/react-components": "^9.20.0",
         "@fluentui/react-icons": "^2.0.201",
+        "i18next": "^22.4.15",
         "mobx": "^6.9.0",
         "mobx-react-lite": "^3.4.3",
         "react": "^18.2.0",
         "react-dom": "^18.2.0",
+        "react-i18next": "^12.2.2",
         "react-router": "^6.11.1",
         "react-router-dom": "^6.11.1",
         "react-toastify": "^9.1.3",
@@ -2507,6 +2509,22 @@
         "node": ">=4"
       }
     },
+    "node_modules/html-parse-stringify": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmmirror.com/html-parse-stringify/-/html-parse-stringify-3.0.1.tgz",
+      "integrity": "sha512-KknJ50kTInJ7qIScF3jeaFRpMpE8/lfiTdzf/twXyPBLAGrLRTmkz3AdTnKeh40X8k9L2fdYwEp/42WGXIRGcg==",
+      "dependencies": {
+        "void-elements": "3.1.0"
+      }
+    },
+    "node_modules/i18next": {
+      "version": "22.4.15",
+      "resolved": "https://registry.npmmirror.com/i18next/-/i18next-22.4.15.tgz",
+      "integrity": "sha512-yYudtbFrrmWKLEhl6jvKUYyYunj4bTBCe2qIUYAxbXoPusY7YmdwPvOE6fx6UIfWvmlbCWDItr7wIs8KEBZ5Zg==",
+      "dependencies": {
+        "@babel/runtime": "^7.20.6"
+      }
+    },
     "node_modules/inflight": {
       "version": "1.0.6",
       "resolved": "https://registry.npmmirror.com/inflight/-/inflight-1.0.6.tgz",
@@ -2999,6 +3017,27 @@
         "loose-envify": "^1.1.0"
       }
     },
+    "node_modules/react-i18next": {
+      "version": "12.2.2",
+      "resolved": "https://registry.npmmirror.com/react-i18next/-/react-i18next-12.2.2.tgz",
+      "integrity": "sha512-KBB6buBmVKXUWNxXHdnthp+38gPyBT46hJCAIQ8rX19NFL/m2ahte2KARfIDf2tMnSAL7wwck6eDOd/9zn6aFg==",
+      "dependencies": {
+        "@babel/runtime": "^7.20.6",
+        "html-parse-stringify": "^3.0.1"
+      },
+      "peerDependencies": {
+        "i18next": ">= 19.0.0",
+        "react": ">= 16.8.0"
+      },
+      "peerDependenciesMeta": {
+        "react-dom": {
+          "optional": true
+        },
+        "react-native": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/react-refresh": {
       "version": "0.14.0",
       "resolved": "https://registry.npmmirror.com/react-refresh/-/react-refresh-0.14.0.tgz",
@@ -3514,6 +3553,14 @@
         }
       }
     },
+    "node_modules/void-elements": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmmirror.com/void-elements/-/void-elements-3.1.0.tgz",
+      "integrity": "sha512-Dhxzh5HZuiHQhbvTW9AMetFfBHDMYpo23Uo9btPXgdYP+3T5S+p+jgNy7spra+veYhBP2dCSgxR/i2Y02h5/6w==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/wrap-ansi": {
       "version": "7.0.0",
       "resolved": "https://registry.npmmirror.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index 82ef1c6..ca00b44 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -11,10 +11,12 @@
   "dependencies": {
     "@fluentui/react-components": "^9.20.0",
     "@fluentui/react-icons": "^2.0.201",
+    "i18next": "^22.4.15",
     "mobx": "^6.9.0",
     "mobx-react-lite": "^3.4.3",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
+    "react-i18next": "^12.2.2",
     "react-router": "^6.11.1",
     "react-router-dom": "^6.11.1",
     "react-toastify": "^9.1.3",
diff --git a/frontend/src/_locales/i18n-react.ts b/frontend/src/_locales/i18n-react.ts
new file mode 100644
index 0000000..de8e3b4
--- /dev/null
+++ b/frontend/src/_locales/i18n-react.ts
@@ -0,0 +1,13 @@
+import i18n, {changeLanguage} from 'i18next';
+import {initReactI18next} from 'react-i18next';
+import {resources} from './resources';
+import {getNavigatorLanguage} from '../utils';
+
+i18n.use(initReactI18next).init({
+  resources,
+  interpolation: {
+    escapeValue: false // not needed for react as it escapes by default
+  }
+}).then(() => {
+  changeLanguage(getNavigatorLanguage());
+});
diff --git a/frontend/src/_locales/i18n.ts b/frontend/src/_locales/i18n.ts
new file mode 100644
index 0000000..34ed77c
--- /dev/null
+++ b/frontend/src/_locales/i18n.ts
@@ -0,0 +1,9 @@
+import i18n, {changeLanguage} from 'i18next';
+import {resources} from './resources';
+import {getNavigatorLanguage} from '../utils';
+
+i18n.init({
+  resources
+}).then(() => {
+  changeLanguage(getNavigatorLanguage());
+});
diff --git a/frontend/src/_locales/resources.ts b/frontend/src/_locales/resources.ts
new file mode 100644
index 0000000..bd327d2
--- /dev/null
+++ b/frontend/src/_locales/resources.ts
@@ -0,0 +1,37 @@
+import zhHans from './zh-hans/main.json'
+
+export const resources = {
+  zh: {
+    translation: zhHans
+  }
+  // de: {
+  //   translation: de,
+  // },
+  // es: {
+  //   translation: es,
+  // },
+  // fr: {
+  //   translation: fr,
+  // },
+  // in: {
+  //   translation: inTrans,
+  // },
+  // it: {
+  //   translation: it,
+  // },
+  // ja: {
+  //   translation: ja,
+  // },
+  // ko: {
+  //   translation: ko,
+  // },
+  // pt: {
+  //   translation: pt,
+  // },
+  // ru: {
+  //   translation: ru,
+  // },
+  // zhHant: {
+  //   translation: zhHant,
+  // },
+}
diff --git a/frontend/src/_locales/zh-hans/main.json b/frontend/src/_locales/zh-hans/main.json
new file mode 100644
index 0000000..74bb69d
--- /dev/null
+++ b/frontend/src/_locales/zh-hans/main.json
@@ -0,0 +1,3 @@
+{
+  "Settings": "设置"
+}
\ No newline at end of file
diff --git a/frontend/src/main.tsx b/frontend/src/main.tsx
index 2232394..c2cef27 100644
--- a/frontend/src/main.tsx
+++ b/frontend/src/main.tsx
@@ -5,6 +5,7 @@ import 'react-toastify/dist/ReactToastify.css';
 import App from './App';
 import {HashRouter} from 'react-router-dom';
 import {startup} from './startup';
+import './_locales/i18n-react';
 
 startup().then(() => {
   const container = document.getElementById('root');
diff --git a/frontend/src/pages/Settings.tsx b/frontend/src/pages/Settings.tsx
index b33489e..03fa7d5 100644
--- a/frontend/src/pages/Settings.tsx
+++ b/frontend/src/pages/Settings.tsx
@@ -4,21 +4,33 @@ import {Dropdown, Option, Switch} from '@fluentui/react-components';
 import {Labeled} from '../components/Labeled';
 import commonStore from '../stores/commonStore';
 import {observer} from 'mobx-react-lite';
+import {UpdateApp} from '../../wailsjs/go/backend_golang/App';
+import {useTranslation} from 'react-i18next';
+import {Language, Languages} from '../utils';
 
 export const Settings: FC = observer(() => {
+  const {t, i18n} = useTranslation();
+
   return (
-    <Page title="Settings" content={
+    <Page title={t('Settings')} content={
       <div className="flex flex-col gap-2 overflow-hidden">
         <Labeled label="Language" flex spaceBetween content={
           <Dropdown style={{minWidth: 0}} listbox={{style: {minWidth: 0}}}
-                    value="English"
-                    selectedOptions={['English']}
+                    value={Languages[commonStore.settings.language]}
+                    selectedOptions={[Languages[commonStore.settings.language]]}
                     onOptionSelect={(_, data) => {
-                      if (data.optionText) {
+                      if (data.optionValue) {
+                        const lang = data.optionValue as Language;
+                        commonStore.setSettings({
+                          language: lang
+                        });
+                        i18n.changeLanguage(lang);
                       }
                     }}>
-            <Option>English</Option>
-            <Option>简体中文</Option>
+            {
+              Object.entries(Languages).map(([langKey, desc]) =>
+                <Option key={langKey} value={langKey}>{desc}</Option>)
+            }
           </Dropdown>
         }/>
         <Labeled label="Dark Mode" flex spaceBetween content={
@@ -32,6 +44,11 @@ export const Settings: FC = observer(() => {
         <Labeled label="Automatic Updates Check" flex spaceBetween content={
           <Switch checked={commonStore.settings.autoUpdatesCheck}
                   onChange={(e, data) => {
+                    commonStore.setSettings({
+                      autoUpdatesCheck: data.checked
+                    });
+                    if (data.checked)
+                      UpdateApp('http://localhost:34115/dist/RWKV-Runner.exe'); //TODO
                   }}/>
         }/>
       </div>
diff --git a/frontend/src/stores/commonStore.ts b/frontend/src/stores/commonStore.ts
index 11e3e95..8b7d704 100644
--- a/frontend/src/stores/commonStore.ts
+++ b/frontend/src/stores/commonStore.ts
@@ -1,5 +1,5 @@
 import {makeAutoObservable} from 'mobx';
-import {getNavigatorLanguage, isSystemLightMode, saveConfigs, Settings} from '../utils';
+import {getNavigatorLanguage, isSystemLightMode, Language, saveConfigs, Settings} from '../utils';
 import {WindowSetDarkTheme, WindowSetLightTheme} from '../../wailsjs/runtime';
 
 export enum ModelStatus {
@@ -84,7 +84,7 @@ class CommonStore {
   modelSourceManifestList: string = 'https://cdn.jsdelivr.net/gh/josstorer/RWKV-Runner/manifest.json;';
   modelSourceList: ModelSourceItem[] = [];
   settings: Settings = {
-    language: getNavigatorLanguage(),
+    language: getNavigatorLanguage() as Language,
     darkMode: !isSystemLightMode(),
     autoUpdatesCheck: true
   };
diff --git a/frontend/src/utils/index.ts b/frontend/src/utils/index.ts
index 74d5eb1..ab736b4 100644
--- a/frontend/src/utils/index.ts
+++ b/frontend/src/utils/index.ts
@@ -2,12 +2,19 @@ import {ListDirFiles, ReadJson, SaveJson} from '../../wailsjs/go/backend_golang/
 import manifest from '../../../manifest.json';
 import commonStore, {ModelConfig, ModelParameters, ModelSourceItem} from '../stores/commonStore';
 
+export const Languages = {
+  dev: 'English', // i18n default
+  zh: '简体中文'
+};
+
+export type Language = keyof typeof Languages;
+
 export type Cache = {
   models: ModelSourceItem[]
 }
 
 export type Settings = {
-  language: string,
+  language: Language,
   darkMode: boolean
   autoUpdatesCheck: boolean
 }