diff --git a/packages/vant-cli/src/config/vite.package.ts b/packages/vant-cli/src/config/vite.package.ts
index a69eb6f8443..94407927b63 100644
--- a/packages/vant-cli/src/config/vite.package.ts
+++ b/packages/vant-cli/src/config/vite.package.ts
@@ -28,6 +28,8 @@ export function getViteConfigForPackage({
       : undefined,
 
     build: {
+      emptyOutDir: false,
+
       lib: {
         name,
         entry,