diff --git a/theme/src/node/defaultOptions.ts b/theme/src/node/defaultOptions.ts
index be3b3d20..9164b778 100644
--- a/theme/src/node/defaultOptions.ts
+++ b/theme/src/node/defaultOptions.ts
@@ -1,55 +1,137 @@
+import type { App } from '@vuepress/core'
+import { deepClone, deepMerge } from '@pengzhanbo/utils'
 import type { PlumeThemeLocaleOptions } from '../shared/index.js'
+import { pathJoin } from './utils.js'
+import { resolveLocaleOptions } from './resolveLocaleOptions.js'
 
-export const defaultLocaleOption: Partial<PlumeThemeLocaleOptions> = {
-  article: '/article',
+const defaultLocales: NonNullable<PlumeThemeLocaleOptions['locales']> = {
+  'en-US': {
+    selectLanguageName: 'English',
+    selectLanguageText: 'Languages',
+    editLinkText: 'Edit this page',
+    lastUpdatedText: 'Last Updated',
+    contributorsText: 'Contributors',
+  },
+  'zh-CN': {
+    selectLanguageName: '简体中文',
+    selectLanguageText: '选择语言',
+
+    blog: { pagination: { prevPageText: '上一页', nextPageText: '下一页' } },
+
+    outlineLabel: '内容大纲',
+    returnToTopLabel: '返回顶部',
+    editLinkText: '编辑此页',
+    lastUpdatedText: '上次更新',
+    prevPageLabel: '上一页',
+    nextPageLabel: '下一页',
+
+    notFound: {
+      code: '404',
+      title: '页面未找到',
+      quote: '但是，如果你不改变方向，并且一直寻找，最终可能会到达你要去的地方。',
+      linkText: '返回首页',
+    },
+  },
+}
+
+export const fallbackLocaleOption: Partial<PlumeThemeLocaleOptions> = {
+  article: '/article/',
   notes: { link: '/note', dir: 'notes', notes: [] },
+  appearance: true,
+  // page meta
+  editLink: true,
+  lastUpdated: true,
+  contributors: true,
   footer: {
     message:
       'Power by <a target="_blank" href="https://v2.vuepress.vuejs.org/">VuePress</a> & <a target="_blank" href="https://github.com/pengzhanbo/vuepress-theme-plume">vuepress-theme-plume</a>',
   },
-  appearance: true,
-  // page meta
-  editLink: true,
-  editLinkText: 'Edit this page',
-  lastUpdated: true,
-  lastUpdatedText: 'Last Updated',
-  contributors: true,
-  contributorsText: 'Contributors',
 }
 
-export function mergeLocaleOptions(options: PlumeThemeLocaleOptions) {
-  if (!options.locales)
-    options.locales = {}
+interface PresetLocale {
+  home: string
+  blog: string
+}
+
+const presetLocales: Record<string, PresetLocale> = {
+  'zh-CN': {
+    home: '首页',
+    blog: '博客',
+  },
+  'en-US': {
+    home: 'Home',
+    blog: 'Blog',
+  },
+}
+
+export function mergeLocaleOptions(app: App, options: PlumeThemeLocaleOptions) {
+  options.locales ??= {}
 
   if (options.notes) {
     options.notes = {
-      ...defaultLocaleOption.notes,
+      ...fallbackLocaleOption.notes,
       ...(options.notes ?? {}),
     }
   }
 
   if (options.footer) {
     options.footer = {
-      ...defaultLocaleOption.footer,
+      ...fallbackLocaleOption.footer,
       ...options.footer,
     }
   }
 
   const { locales, ...otherOptions } = options
-
-  if (!locales['/'])
-    locales['/'] = {}
+  locales['/'] ??= {}
 
   Object.assign(options, {
-    ...defaultLocaleOption,
+    ...fallbackLocaleOption,
     ...options,
   })
 
   Object.assign(locales['/'], {
-    ...{ selectLanguageName: 'English' },
-    ...JSON.parse(JSON.stringify(otherOptions)),
+    ...deepClone(otherOptions),
     ...locales['/'],
   })
 
+  const langs: Record<string, string> = {}
+  Object.keys(app.siteData.locales || {}).forEach((locale) => {
+    const lang = app.siteData.locales![locale]?.lang || 'en-US'
+    langs[locale] = lang
+    if (defaultLocales[lang]) {
+      locales[locale] = deepMerge(
+        {},
+        defaultLocales[lang],
+        locales[locale] || {},
+      )
+    }
+  })
+
+  const base = app.siteData.base || '/'
+  const defaultLang = app.siteData.lang || 'en-US'
+  const defaultBlog = resolveLocaleOptions(options, 'blog')
+  Object.keys(locales).forEach((locale) => {
+    const option = locales[locale]
+    const lang = langs[locale] || defaultLang
+
+    // 当用户未配置导航栏时，生成默认导航栏
+    if (!option.navbar || !option.navbar.length) {
+      option.navbar = [{
+        link: pathJoin(base, locale),
+        text: presetLocales[lang]?.home || presetLocales[defaultLang].home,
+        icon: 'material-symbols:home-outline',
+      }]
+      const blog = option.blog
+      const link = blog?.link
+        ? blog.link
+        : pathJoin(base, locale, defaultBlog?.link || '/blog/')
+      link && option.navbar.push({
+        link,
+        text: presetLocales[lang]?.blog || presetLocales[defaultLang].blog,
+        icon: 'material-symbols:article-outline',
+      })
+    }
+  })
+
   return options
 }
diff --git a/theme/src/node/theme.ts b/theme/src/node/theme.ts
index 7af76c53..9e0b3969 100644
--- a/theme/src/node/theme.ts
+++ b/theme/src/node/theme.ts
@@ -13,23 +13,25 @@ export function plumeTheme({
   plugins,
   ...localeOptions
 }: PlumeThemeOptions = {}): Theme {
-  localeOptions = mergeLocaleOptions(localeOptions)
   const pluginsOptions = plugins ?? themePlugins ?? {}
   const pkg = getThemePackage()
 
-  return app => ({
-    name: THEME_NAME,
-    templateBuild: templates('build.html'),
-    clientConfigFile: resolve('client/config.js'),
-    plugins: setupPlugins(app, pluginsOptions, localeOptions),
-    onInitialized: app => setupPage(app, localeOptions),
-    extendsPage: page => extendsPageData(app, page as Page<PlumeThemePageData>, localeOptions),
-    templateBuildRenderer(template, context) {
-      template = template
-        .replace('{{ themeVersion }}', pkg.version || '')
-        .replace(/^\s+|\s+$/gm, '')
-        .replace(/\n/g, '')
-      return templateRenderer(template, context)
-    },
-  })
+  return (app) => {
+    localeOptions = mergeLocaleOptions(app, localeOptions)
+    return {
+      name: THEME_NAME,
+      templateBuild: templates('build.html'),
+      clientConfigFile: resolve('client/config.js'),
+      plugins: setupPlugins(app, pluginsOptions, localeOptions),
+      onInitialized: app => setupPage(app, localeOptions),
+      extendsPage: page => extendsPageData(app, page as Page<PlumeThemePageData>, localeOptions),
+      templateBuildRenderer(template, context) {
+        template = template
+          .replace('{{ themeVersion }}', pkg.version || '')
+          .replace(/^\s+|\s+$/gm, '')
+          .replace(/\n/g, '')
+        return templateRenderer(template, context)
+      },
+    }
+  }
 }