diff --git a/web/default/package.json b/web/default/package.json
index d03288ed..15e48f48 100644
--- a/web/default/package.json
+++ b/web/default/package.json
@@ -5,10 +5,14 @@
   "dependencies": {
     "axios": "^0.27.2",
     "history": "^5.3.0",
+    "i18next": "^24.2.2",
+    "i18next-browser-languagedetector": "^8.0.2",
+    "i18next-http-backend": "^3.0.2",
     "marked": "^4.1.1",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-dropzone": "^14.2.3",
+    "react-i18next": "^15.4.0",
     "react-router-dom": "^6.3.0",
     "react-scripts": "5.0.1",
     "react-toastify": "^9.0.8",
diff --git a/web/default/public/locales/en/translation.json b/web/default/public/locales/en/translation.json
new file mode 100644
index 00000000..fc54a52e
--- /dev/null
+++ b/web/default/public/locales/en/translation.json
@@ -0,0 +1,38 @@
+{
+  "header": {
+    "home": "Home",
+    "channel": "Channel",
+    "token": "Token",
+    "redemption": "Redemption",
+    "topup": "Top Up",
+    "user": "User",
+    "dashboard": "Dashboard",
+    "log": "Log",
+    "setting": "Settings",
+    "about": "About",
+    "chat": "Chat",
+    "login": "Login",
+    "logout": "Logout",
+    "register": "Register"
+  },
+  "topup": {
+    "title": "Top Up Center",
+    "get_code": {
+      "title": "Get Redemption Code",
+      "current_quota": "Current Available Quota",
+      "button": "Get Code Now"
+    },
+    "redeem_code": {
+      "title": "Redeem Code",
+      "placeholder": "Please enter redemption code",
+      "paste": "Paste",
+      "paste_error": "Cannot access clipboard, please paste manually",
+      "submit": "Redeem Now",
+      "submitting": "Redeeming...",
+      "empty_code": "Please enter the redemption code!",
+      "success": "Top up successful!",
+      "request_failed": "Request failed",
+      "no_link": "Admin has not set up the top-up link!"
+    }
+  }
+}
diff --git a/web/default/public/locales/zh/translation.json b/web/default/public/locales/zh/translation.json
new file mode 100644
index 00000000..51449786
--- /dev/null
+++ b/web/default/public/locales/zh/translation.json
@@ -0,0 +1,38 @@
+{
+  "header": {
+    "home": "首页",
+    "channel": "渠道",
+    "token": "令牌",
+    "redemption": "兑换",
+    "topup": "充值",
+    "user": "用户",
+    "dashboard": "总览",
+    "log": "日志",
+    "setting": "设置",
+    "about": "关于",
+    "chat": "聊天",
+    "login": "登录",
+    "logout": "注销",
+    "register": "注册"
+  },
+  "topup": {
+    "title": "充值中心",
+    "get_code": {
+      "title": "获取兑换码",
+      "current_quota": "当前可用额度",
+      "button": "立即获取兑换码"
+    },
+    "redeem_code": {
+      "title": "兑换码充值",
+      "placeholder": "请输入兑换码",
+      "paste": "粘贴",
+      "paste_error": "无法访问剪贴板，请手动粘贴",
+      "submit": "立即兑换",
+      "submitting": "兑换中...",
+      "empty_code": "请输入兑换码！",
+      "success": "充值成功！",
+      "request_failed": "请求失败",
+      "no_link": "超级管理员未设置充值链接！"
+    }
+  }
+}
diff --git a/web/default/src/components/Header.js b/web/default/src/components/Header.js
index dd2a5fdd..52d67042 100644
--- a/web/default/src/components/Header.js
+++ b/web/default/src/components/Header.js
@@ -1,6 +1,7 @@
 import React, { useContext, useState } from 'react';
 import { Link, useNavigate } from 'react-router-dom';
 import { UserContext } from '../context/User';
+import { useTranslation } from 'react-i18next';
 
 import {
   Button,
@@ -23,55 +24,55 @@ import '../index.css';
 // Header Buttons
 let headerButtons = [
   {
-    name: '首页',
+    name: 'header.home',
     to: '/',
     icon: 'home',
   },
   {
-    name: '渠道',
+    name: 'header.channel',
     to: '/channel',
     icon: 'sitemap',
     admin: true,
   },
   {
-    name: '令牌',
+    name: 'header.token',
     to: '/token',
     icon: 'key',
   },
   {
-    name: '兑换',
+    name: 'header.redemption',
     to: '/redemption',
     icon: 'dollar sign',
     admin: true,
   },
   {
-    name: '充值',
+    name: 'header.topup',
     to: '/topup',
     icon: 'cart',
   },
   {
-    name: '用户',
+    name: 'header.user',
     to: '/user',
     icon: 'user',
     admin: true,
   },
   {
-    name: '总览',
+    name: 'header.dashboard',
     to: '/dashboard',
     icon: 'chart bar',
   },
   {
-    name: '日志',
+    name: 'header.log',
     to: '/log',
     icon: 'book',
   },
   {
-    name: '设置',
+    name: 'header.setting',
     to: '/setting',
     icon: 'setting',
   },
   {
-    name: '关于',
+    name: 'header.about',
     to: '/about',
     icon: 'info circle',
   },
@@ -79,13 +80,14 @@ let headerButtons = [
 
 if (localStorage.getItem('chat_link')) {
   headerButtons.splice(1, 0, {
-    name: '聊天',
+    name: 'header.chat',
     to: '/chat',
     icon: 'comments',
   });
 }
 
 const Header = () => {
+  const { t, i18n } = useTranslation();
   const [userState, userDispatch] = useContext(UserContext);
   let navigate = useNavigate();
 
@@ -112,13 +114,14 @@ const Header = () => {
       if (isMobile) {
         return (
           <Menu.Item
+            key={button.name}
             onClick={() => {
               navigate(button.to);
               setShowSidebar(false);
             }}
             style={{ fontSize: '15px' }}
           >
-            {button.name}
+            {t(button.name)}
           </Menu.Item>
         );
       }
@@ -134,12 +137,22 @@ const Header = () => {
           }}
         >
           <Icon name={button.icon} style={{ marginRight: '4px' }} />
-          {button.name}
+          {t(button.name)}
         </Menu.Item>
       );
     });
   };
 
+  // Add language switcher dropdown
+  const languageOptions = [
+    { key: 'zh', text: '中文', value: 'zh' },
+    { key: 'en', text: 'English', value: 'en' },
+  ];
+
+  const changeLanguage = (language) => {
+    i18n.changeLanguage(language);
+  };
+
   if (isMobile()) {
     return (
       <>
@@ -175,10 +188,18 @@ const Header = () => {
           <Segment style={{ marginTop: 0, borderTop: '0' }}>
             <Menu secondary vertical style={{ width: '100%', margin: 0 }}>
               {renderButtons(true)}
+              <Menu.Item>
+                <Dropdown
+                  selection
+                  options={languageOptions}
+                  value={i18n.language}
+                  onChange={(_, { value }) => changeLanguage(value)}
+                />
+              </Menu.Item>
               <Menu.Item>
                 {userState.user ? (
                   <Button onClick={logout} style={{ color: '#666666' }}>
-                    注销
+                    {t('header.logout')}
                   </Button>
                 ) : (
                   <>
@@ -188,7 +209,7 @@ const Header = () => {
                         navigate('/login');
                       }}
                     >
-                      登录
+                      {t('header.login')}
                     </Button>
                     <Button
                       onClick={() => {
@@ -196,7 +217,7 @@ const Header = () => {
                         navigate('/register');
                       }}
                     >
-                      注册
+                      {t('header.register')}
                     </Button>
                   </>
                 )}
@@ -235,6 +256,17 @@ const Header = () => {
           </Menu.Item>
           {renderButtons(false)}
           <Menu.Menu position='right'>
+            <Dropdown
+              item
+              options={languageOptions}
+              value={i18n.language}
+              onChange={(_, { value }) => changeLanguage(value)}
+              style={{
+                fontSize: '15px',
+                fontWeight: '400',
+                color: '#666',
+              }}
+            />
             {userState.user ? (
               <Dropdown
                 text={userState.user.username}
@@ -255,13 +287,13 @@ const Header = () => {
                       color: '#666',
                     }}
                   >
-                    注销
+                    {t('header.logout')}
                   </Dropdown.Item>
                 </Dropdown.Menu>
               </Dropdown>
             ) : (
               <Menu.Item
-                name='登录'
+                name={t('header.login')}
                 as={Link}
                 to='/login'
                 className='btn btn-link'
diff --git a/web/default/src/i18n.js b/web/default/src/i18n.js
new file mode 100644
index 00000000..639c7e94
--- /dev/null
+++ b/web/default/src/i18n.js
@@ -0,0 +1,23 @@
+import i18n from 'i18next';
+import { initReactI18next } from 'react-i18next';
+import Backend from 'i18next-http-backend';
+import LanguageDetector from 'i18next-browser-languagedetector';
+
+i18n
+  .use(Backend)
+  .use(LanguageDetector)
+  .use(initReactI18next)
+  .init({
+    fallbackLng: 'zh',
+    debug: process.env.NODE_ENV === 'development',
+
+    interpolation: {
+      escapeValue: false,
+    },
+
+    backend: {
+      loadPath: '/locales/{{lng}}/{{ns}}.json',
+    },
+  });
+
+export default i18n;
diff --git a/web/default/src/index.js b/web/default/src/index.js
index eca5c3c0..688d3a6d 100644
--- a/web/default/src/index.js
+++ b/web/default/src/index.js
@@ -11,6 +11,7 @@ import { UserProvider } from './context/User';
 import { ToastContainer } from 'react-toastify';
 import 'react-toastify/dist/ReactToastify.css';
 import { StatusProvider } from './context/Status';
+import './i18n';
 
 const root = ReactDOM.createRoot(document.getElementById('root'));
 root.render(
diff --git a/web/default/src/pages/TopUp/index.js b/web/default/src/pages/TopUp/index.js
index 2838f0dd..9ffb6af0 100644
--- a/web/default/src/pages/TopUp/index.js
+++ b/web/default/src/pages/TopUp/index.js
@@ -10,8 +10,10 @@ import {
 } from 'semantic-ui-react';
 import { API, showError, showInfo, showSuccess } from '../../helpers';
 import { renderQuota } from '../../helpers/render';
+import { useTranslation } from 'react-i18next';
 
 const TopUp = () => {
+  const { t } = useTranslation();
   const [redemptionCode, setRedemptionCode] = useState('');
   const [topUpLink, setTopUpLink] = useState('');
   const [userQuota, setUserQuota] = useState(0);
@@ -20,7 +22,7 @@ const TopUp = () => {
 
   const topUp = async () => {
     if (redemptionCode === '') {
-      showInfo('请输入兑换码！');
+      showInfo(t('topup.redeem_code.empty_code'));
       return;
     }
     setIsSubmitting(true);
@@ -30,7 +32,7 @@ const TopUp = () => {
       });
       const { success, message, data } = res.data;
       if (success) {
-        showSuccess('充值成功！');
+        showSuccess(t('topup.redeem_code.success'));
         setUserQuota((quota) => {
           return quota + data;
         });
@@ -39,7 +41,7 @@ const TopUp = () => {
         showError(message);
       }
     } catch (err) {
-      showError('请求失败');
+      showError(t('topup.redeem_code.request_failed'));
     } finally {
       setIsSubmitting(false);
     }
@@ -47,13 +49,12 @@ const TopUp = () => {
 
   const openTopUpLink = () => {
     if (!topUpLink) {
-      showError('超级管理员未设置充值链接！');
+      showError(t('topup.redeem_code.no_link'));
       return;
     }
     let url = new URL(topUpLink);
     let username = user.username;
     let user_id = user.id;
-    // add username and user_id to the topup link
     url.searchParams.append('username', username);
     url.searchParams.append('user_id', user_id);
     url.searchParams.append('transaction_id', crypto.randomUUID());
@@ -87,7 +88,7 @@ const TopUp = () => {
       <Card fluid className='chart-card'>
         <Card.Content>
           <Card.Header>
-            <Header as='h2'>充值中心</Header>
+            <Header as='h2'>{t('topup.title')}</Header>
           </Card.Header>
 
           <Grid columns={2} stackable>
@@ -109,7 +110,7 @@ const TopUp = () => {
                   <Card.Header>
                     <Header as='h3' style={{ color: '#2185d0', margin: '1em' }}>
                       <i className='credit card icon'></i>
-                      获取兑换码
+                      {t('topup.get_code.title')}
                     </Header>
                   </Card.Header>
                   <Card.Description
@@ -132,7 +133,9 @@ const TopUp = () => {
                           <Statistic.Value style={{ color: '#2185d0' }}>
                             {renderQuota(userQuota)}
                           </Statistic.Value>
-                          <Statistic.Label>当前可用额度</Statistic.Label>
+                          <Statistic.Label>
+                            {t('topup.get_code.current_quota')}
+                          </Statistic.Label>
                         </Statistic>
                       </div>
 
@@ -145,7 +148,7 @@ const TopUp = () => {
                           onClick={openTopUpLink}
                           style={{ width: '80%' }}
                         >
-                          立即获取兑换码
+                          {t('topup.get_code.button')}
                         </Button>
                       </div>
                     </div>
@@ -172,7 +175,7 @@ const TopUp = () => {
                   <Card.Header>
                     <Header as='h3' style={{ color: '#21ba45', margin: '1em' }}>
                       <i className='ticket alternate icon'></i>
-                      兑换码充值
+                      {t('topup.redeem_code.title')}
                     </Header>
                   </Card.Header>
                   <Card.Description
@@ -194,7 +197,7 @@ const TopUp = () => {
                         fluid
                         icon='key'
                         iconPosition='left'
-                        placeholder='请输入兑换码'
+                        placeholder={t('topup.redeem_code.placeholder')}
                         value={redemptionCode}
                         onChange={(e) => {
                           setRedemptionCode(e.target.value);
@@ -207,14 +210,14 @@ const TopUp = () => {
                         action={
                           <Button
                             icon='paste'
-                            content='粘贴'
+                            content={t('topup.redeem_code.paste')}
                             onClick={async () => {
                               try {
                                 const text =
                                   await navigator.clipboard.readText();
                                 setRedemptionCode(text.trim());
                               } catch (err) {
-                                showError('无法访问剪贴板，请手动粘贴');
+                                showError(t('topup.redeem_code.paste_error'));
                               }
                             }}
                           />
@@ -230,7 +233,9 @@ const TopUp = () => {
                           loading={isSubmitting}
                           disabled={isSubmitting}
                         >
-                          {isSubmitting ? '兑换中...' : '立即兑换'}
+                          {isSubmitting
+                            ? t('topup.redeem_code.submitting')
+                            : t('topup.redeem_code.submit')}
                         </Button>
                       </div>
                     </div>