diff --git a/src/node/config.ts b/src/node/config.ts
index d5af0e59..6ac2cd52 100644
--- a/src/node/config.ts
+++ b/src/node/config.ts
@@ -21,6 +21,7 @@ export interface UserConfig<ThemeConfig = any> {
   alias?: Record<string, string>
   markdown?: MarkdownOptions
   customData?: any
+  isCustomElement?: (tag: string) => boolean | void
 }
 
 export interface SiteConfig<ThemeConfig = any> {
@@ -33,6 +34,7 @@ export interface SiteConfig<ThemeConfig = any> {
   alias: AliasOptions
   pages: string[]
   markdown?: MarkdownOptions
+  isCustomElement?: (tag: string) => boolean | void
 }
 
 const resolve = (root: string, file: string) =>
@@ -59,7 +61,8 @@ export async function resolveConfig(
     outDir: resolve(root, 'dist'),
     tempDir: path.resolve(APP_PATH, 'temp'),
     markdown: userConfig.markdown,
-    alias: resolveAliases(themeDir, userConfig)
+    alias: resolveAliases(themeDir, userConfig),
+    isCustomElement: userConfig.isCustomElement
   }
 
   return config
diff --git a/src/node/plugin.ts b/src/node/plugin.ts
index 1cebd379..11c589c0 100644
--- a/src/node/plugin.ts
+++ b/src/node/plugin.ts
@@ -24,14 +24,17 @@ const isPageChunk = (
 
 export function createVitePressPlugin(
   root: string,
-  { configPath, alias, markdown, site }: SiteConfig,
+  { configPath, alias, markdown, site, isCustomElement }: SiteConfig,
   ssr = false,
   pageToHashMap?: Record<string, string>
 ): Plugin[] {
   const markdownToVue = createMarkdownToVueRenderFn(root, markdown)
 
   const vuePlugin = createVuePlugin({
-    include: [/\.vue$/, /\.md$/]
+    include: [/\.vue$/, /\.md$/],
+    template: {
+      compilerOptions: { isCustomElement }
+    }
   })
 
   let siteData = site