diff --git a/dashboard/src/App.vue b/dashboard/src/App.vue
index 53a3478..e9b4759 100644
--- a/dashboard/src/App.vue
+++ b/dashboard/src/App.vue
@@ -72,9 +72,8 @@
 						"
 						class="border bg-red-200 px-5 py-3 text-base text-red-900"
 					>
-						You are not logged in.
-						<router-link to="/login" class="underline">Login</router-link> to
-						access dashboard.
+						{{ $t('You are not logged in.') }}
+						<router-link to="/login" class="underline">{{ $t('Login') }}</router-link> {{ $t('to access dashboard.') }}
 					</div>
 					<router-view />
 				</div>
@@ -89,13 +88,14 @@
 </template>
 
 <script setup>
-import { defineAsyncComponent, computed, watch, ref, provide, onMounted, onUnmounted, h, getCurrentInstance } from 'vue';
+import { defineAsyncComponent, computed, watch, ref, provide, onMounted, onUnmounted } from 'vue';
 import { NLayout, NLayoutSider, NConfigProvider, NButton, NIcon, NDropdown } from 'naive-ui';
 import { Toaster } from 'vue-sonner';
 import { dialogs } from './utils/components';
 import { useRoute, useRouter } from 'vue-router';
 import { getTeam } from './data/team';
 import { session } from './data/session.js';
+import { useI18n } from './composables/useI18n';
 import JLogo from '@/components/icons/JLogo.vue';
 import MenuIcon from '~icons/lucide/menu';
 import ChevronDown from '~icons/lucide/chevron-down';
@@ -111,7 +111,7 @@ const SwitchTeamDialog = defineAsyncComponent(
 const route = useRoute();
 const router = useRouter();
 const team = getTeam();
-const instance = getCurrentInstance();
+const { t } = useI18n();
 const showTeamSwitcher = ref(false);
 const isMobileDropdownOpen = ref(false);
 
@@ -152,7 +152,7 @@ const sidebarCollapsed = ref(false);
 // 团队用户文本（用于移动端显示）
 const teamUserText = computed(() => {
 	if (team?.get?.loading) {
-		return '加载中...';
+		return t('Loading...');
 	}
 	return team?.pg?.user || '';
 });
@@ -207,12 +207,12 @@ const mobileDropdownOptions = computed(() => {
 		(teamData.valid_teams?.length > 1 || teamData.is_desk_user)
 	) {
 		options.push({
-			label: '切换团队',
+			label: t('Switch Team'),
 			key: 'switch-team',
 		});
 	}
 	options.push({
-		label: '退出登录',
+		label: t('Logout'),
 		key: 'logout',
 	});
 	return options;
diff --git a/dashboard/src/composables/useI18n.js b/dashboard/src/composables/useI18n.js
new file mode 100644
index 0000000..f52f2e7
--- /dev/null
+++ b/dashboard/src/composables/useI18n.js
@@ -0,0 +1,14 @@
+import { t, getLocale, currentLocale } from '@/utils/i18n';
+
+/**
+ * i18n composable
+ * 在组件中使用：const { t, getLocale, currentLocale } = useI18n();
+ */
+export function useI18n() {
+	return {
+		t,
+		getLocale,
+		currentLocale
+	};
+}
+
diff --git a/dashboard/src/globals.ts b/dashboard/src/globals.ts
index 0458054..799e730 100644
--- a/dashboard/src/globals.ts
+++ b/dashboard/src/globals.ts
@@ -6,6 +6,7 @@ import { debounce } from 'jingrow-ui';
 import { getTeam } from './data/team';
 import * as formatters from './utils/format';
 import { getPlatform, isMobile } from './utils/device';
+import { t } from './utils/i18n';
 
 export default function globals(app) {
 	app.config.globalProperties.$session = session;
@@ -18,6 +19,7 @@ export default function globals(app) {
 	app.config.globalProperties.$log = console.log;
 	app.config.globalProperties.$debounce = debounce;
 	app.config.globalProperties.$isMobile = isMobile();
+	app.config.globalProperties.$t = t;
 
 	// legacy globals for old dashboard
 	// TODO: remove later
diff --git a/dashboard/src/main.js b/dashboard/src/main.js
index 04628e0..35bf3ae 100644
--- a/dashboard/src/main.js
+++ b/dashboard/src/main.js
@@ -13,6 +13,7 @@ import { fetchPlans } from './data/plans.js';
 import * as Sentry from '@sentry/vue';
 import { session } from './data/session.js';
 import { unreadNotificationsCount } from './data/notifications.js';
+import { initI18n } from './utils/i18n';
 import './vendor/posthog.js';
 
 const request = (options) => {
@@ -36,7 +37,10 @@ setConfig('defaultDocDeleteUrl', 'jcloud.api.client.delete');
 let app;
 let socket;
 
-getInitialData().then(() => {
+getInitialData().then(async () => {
+	// 初始化 i18n（在创建 app 之前）
+	await initI18n();
+	
 	app = createApp(App);
 	app.use(router);
 	app.use(resourcesPlugin);
diff --git a/dashboard/src/utils/i18n.js b/dashboard/src/utils/i18n.js
new file mode 100644
index 0000000..5c154f2
--- /dev/null
+++ b/dashboard/src/utils/i18n.js
@@ -0,0 +1,93 @@
+import { ref } from 'vue';
+import { jingrowRequest } from 'jingrow-ui';
+
+// 从构建时配置获取语言，默认为英文
+const buildLocale = import.meta.env.DASHBOARD_LOCALE || 'en';
+
+// 当前语言（从构建配置获取，不可切换）
+const currentLocale = ref(buildLocale);
+const translations = ref({});
+const isLoading = ref(false);
+const initPromise = ref(null);
+
+/**
+ * 从后端加载翻译
+ * @param {string} locale - 语言代码，默认 'en'
+ */
+export async function loadTranslations(locale = 'en') {
+	// 如果正在加载或已加载相同语言，直接返回
+	if (isLoading.value) {
+		return initPromise.value;
+	}
+	
+	if (currentLocale.value === locale && Object.keys(translations.value).length > 0) {
+		return Promise.resolve();
+	}
+
+	isLoading.value = true;
+	
+	const promise = jingrowRequest({
+		url: '/api/action/jingrow.translate.get_app_translations',
+		method: 'GET',
+		params: { _lang: locale }
+	})
+		.then((response) => {
+			translations.value = response || {};
+			currentLocale.value = locale;
+		})
+		.catch((error) => {
+			console.error('Failed to load translations:', error);
+			translations.value = {};
+		})
+		.finally(() => {
+			isLoading.value = false;
+		});
+
+	initPromise.value = promise;
+	return promise;
+}
+
+/**
+ * 翻译函数
+ * @param {string} key - 翻译键（通常是英文原文）
+ * @param {object} params - 参数对象，用于替换占位符
+ * @returns {string} 翻译后的文本
+ */
+export function t(key, params = {}) {
+	if (!key || typeof key !== 'string') return key;
+	
+	// 从翻译字典中获取翻译，如果没有则返回原文
+	let translated = translations.value[key] || key;
+	
+	// 支持参数替换，如 t('Hello {name}', { name: 'John' })
+	if (params && typeof params === 'object' && Object.keys(params).length > 0) {
+		Object.keys(params).forEach((paramKey) => {
+			const regex = new RegExp(`\\{${paramKey}\\}`, 'g');
+			translated = translated.replace(regex, String(params[paramKey]));
+		});
+	}
+	
+	return translated;
+}
+
+/**
+ * 获取当前语言（构建时配置的语言）
+ * @returns {string} 当前语言代码
+ */
+export function getLocale() {
+	return currentLocale.value;
+}
+
+/**
+ * 初始化 i18n
+ * 使用构建时配置的语言
+ */
+export async function initI18n() {
+	const locale = buildLocale.split('-')[0] || 'en'; // 处理 'en-US' -> 'en'
+	await loadTranslations(locale);
+	document.documentElement.lang = locale;
+}
+
+// 导出响应式状态（供 composable 使用）
+export { currentLocale, isLoading };
+
diff --git a/dashboard/vite.config.ts b/dashboard/vite.config.ts
index d389676..af317a3 100644
--- a/dashboard/vite.config.ts
+++ b/dashboard/vite.config.ts
@@ -9,6 +9,9 @@ import Icons from 'unplugin-icons/vite';
 import IconsResolver from 'unplugin-icons/resolver';
 import { sentryVitePlugin } from '@sentry/vite-plugin';
 
+// 语言配置：通过环境变量 DASHBOARD_LOCALE 设置，默认为 'en'
+const locale = process.env.DASHBOARD_LOCALE || 'en';
+
 export default defineConfig({
 	plugins: [
 		vue(),
@@ -61,6 +64,10 @@ export default defineConfig({
 			}
 		}
 	},
+	define: {
+		// 将语言配置注入到代码中，构建时使用
+		'import.meta.env.DASHBOARD_LOCALE': JSON.stringify(locale)
+	},
 	// @ts-ignore
 	test: {
 		globals: true,