diff --git a/packages/vant-cli/site/desktop/App.vue b/packages/vant-cli/site/desktop/App.vue
index 3f54cb0c1..a5db140fa 100644
--- a/packages/vant-cli/site/desktop/App.vue
+++ b/packages/vant-cli/site/desktop/App.vue
@@ -17,7 +17,10 @@ export default {
 
   data() {
     const { site } = config.build || {};
-    const publicPath = (site && site.publicPath) || '/';
+    const isProd = process.env.NODE_ENV === 'production';
+    const prodPublicPath = (site && site.publicPath) || '/';
+    const publicPath = isProd ? prodPublicPath : '/';
+
     return {
       config: config.site,
       simulator: `${publicPath}mobile.html${location.hash}`
diff --git a/packages/vant-cli/src/config/webpack.site.dev.ts b/packages/vant-cli/src/config/webpack.site.dev.ts
index d6f2d9d82..0aa19a1ef 100644
--- a/packages/vant-cli/src/config/webpack.site.dev.ts
+++ b/packages/vant-cli/src/config/webpack.site.dev.ts
@@ -30,8 +30,6 @@ export const siteDevBaseConfig = merge(baseConfig as any, {
     }
   },
   output: {
-    path: join(__dirname, '../../site/dist'),
-    publicPath: '/',
     chunkFilename: 'async_[name].js'
   },
   optimization: {
diff --git a/packages/vant-cli/src/config/webpack.site.prd.ts b/packages/vant-cli/src/config/webpack.site.prd.ts
index 60e0fbc5b..3c8eb5181 100644
--- a/packages/vant-cli/src/config/webpack.site.prd.ts
+++ b/packages/vant-cli/src/config/webpack.site.prd.ts
@@ -1,13 +1,12 @@
 import merge from 'webpack-merge';
 import { get } from 'lodash';
-import { isDev, getWebpackConfig } from '../common';
+import { getWebpackConfig } from '../common';
 import { siteDevBaseConfig } from './webpack.site.dev';
 import { CONFIG, SITE_DIST_DIR } from '../common/constant';
 
 const outputDir = get(CONFIG, 'build.site.outputDir', SITE_DIST_DIR);
 
-// always use '/' as publicPath in dev mode
-const publicPath = isDev() ? '/' : get(CONFIG, 'build.site.publicPath', '/');
+const publicPath = get(CONFIG, 'build.site.publicPath', '/');
 
 export const sitePrdConfig = merge(
   siteDevBaseConfig,