diff --git a/packages/core/src/server/middlewares/resource.ts b/packages/core/src/server/middlewares/resource.ts
index 7b8c6c89a1..fbda71fb4c 100644
--- a/packages/core/src/server/middlewares/resource.ts
+++ b/packages/core/src/server/middlewares/resource.ts
@@ -98,6 +98,14 @@ export function resourceMiddleware(app: Server): Connect.NextHandleFunction {
     //     return;
     //   }
     // }
+    // TODO redefine spa mpa
+    let indexHtml = compiler.resources()['index.html'];
+
+    if (indexHtml) {
+      res.setHeader('Content-Type', 'text/html');
+      res.end(indexHtml);
+      return;
+    }
 
     // 如果找不到任何匹配的资源，返回 404
     res.statusCode = 404;