diff --git a/theme/src/node/plugins.ts b/theme/src/node/plugins.ts
index 8c3e7c94..6d53c5d0 100644
--- a/theme/src/node/plugins.ts
+++ b/theme/src/node/plugins.ts
@@ -30,6 +30,7 @@ import autoFrontmatter from './autoFrontmatter.js'
 import { resolveLocaleOptions } from './resolveLocaleOptions.js'
 import { pathJoin } from './utils.js'
 import { resolveNotesList } from './resolveNotesList.js'
+import { resolvedDocsearchOption, resolvedSearchOptions } from './searchPluginOptions.js'
 
 export function setupPlugins(
   app: App,
@@ -129,16 +130,16 @@ export function setupPlugins(
     }))
   }
 
-  if (options.search !== false)
-    plugins.push(searchPlugin(options.search))
-
-  if (options.docsearch !== false && !options.search) {
-    if (options.docsearch?.appId && options.docsearch?.apiKey)
-      plugins.push(docsearchPlugin(options.docsearch))
+  if (options.docsearch) {
+    if (options.docsearch.appId && options.docsearch.apiKey)
+      plugins.push(docsearchPlugin(resolvedDocsearchOption(app, options.docsearch)))
 
     else
       console.error('docsearch plugin: appId and apiKey are both required')
   }
+  else if (options.search !== false) {
+    plugins.push(searchPlugin(resolvedSearchOptions(app, options.search)))
+  }
 
   if (options.shikiji !== false) {
     plugins.push(shikijiPlugin({
diff --git a/theme/src/node/searchPluginOptions.ts b/theme/src/node/searchPluginOptions.ts
new file mode 100644
index 00000000..93435cc0
--- /dev/null
+++ b/theme/src/node/searchPluginOptions.ts
@@ -0,0 +1,88 @@
+import type { DocsearchPluginOptions } from '@vuepress/plugin-docsearch'
+import type { SearchPluginOptions } from '@vuepress/plugin-search'
+import type { App } from '@vuepress/core'
+import { deepMerge } from '@pengzhanbo/utils'
+
+// `en-US` is used by default
+const defaultDocsearchLocales: NonNullable<DocsearchPluginOptions['locales']> = {
+  'zh-CN': {
+    placeholder: '搜索文档',
+    translations: {
+      button: {
+        buttonText: '搜索文档',
+        buttonAriaLabel: '搜索文档',
+      },
+      modal: {
+        searchBox: {
+          resetButtonTitle: '清除查询条件',
+          resetButtonAriaLabel: '清除查询条件',
+          cancelButtonText: '取消',
+          cancelButtonAriaLabel: '取消',
+        },
+        startScreen: {
+          recentSearchesTitle: '搜索历史',
+          noRecentSearchesText: '没有搜索历史',
+          saveRecentSearchButtonTitle: '保存至搜索历史',
+          removeRecentSearchButtonTitle: '从搜索历史中移除',
+          favoriteSearchesTitle: '收藏',
+          removeFavoriteSearchButtonTitle: '从收藏中移除',
+        },
+        errorScreen: {
+          titleText: '无法获取结果',
+          helpText: '你可能需要检查你的网络连接',
+        },
+        footer: {
+          selectText: '选择',
+          navigateText: '切换',
+          closeText: '关闭',
+          searchByText: '搜索提供者',
+        },
+        noResultsScreen: {
+          noResultsText: '无法找到相关结果',
+          suggestedQueryText: '你可以尝试查询',
+          reportMissingResultsText: '你认为该查询应该有结果？',
+          reportMissingResultsLinkText: '点击反馈',
+        },
+      },
+    },
+  },
+}
+
+const defaultSearchLocales: NonNullable<SearchPluginOptions['locales']> = {
+  'zh-CN': { placeholder: '搜索' },
+  'en-US': { placeholder: 'Search' },
+}
+
+export function resolvedDocsearchOption(app: App, options: DocsearchPluginOptions): DocsearchPluginOptions {
+  options.locales ??= {}
+
+  Object.keys(app.siteData.locales || {}).forEach((locale) => {
+    const lang = app.siteData.locales![locale]?.lang || 'en-US'
+    if (defaultDocsearchLocales[lang]) {
+      options.locales![locale] = deepMerge(
+        {},
+        defaultDocsearchLocales[lang],
+        options.locales![locale] || {},
+      )
+    }
+  })
+
+  return options
+}
+
+export function resolvedSearchOptions(app: App, options: SearchPluginOptions = {}): SearchPluginOptions {
+  options.locales ??= {}
+
+  Object.keys(app.siteData.locales || {}).forEach((locale) => {
+    const lang = app.siteData.locales![locale]?.lang || 'en-US'
+    if (defaultSearchLocales[lang]) {
+      options.locales![locale] = deepMerge(
+        {},
+        defaultSearchLocales[lang],
+        options.locales![locale] || {},
+      )
+    }
+  })
+
+  return options
+}