diff --git a/ace-loader/src/genAbc-plugin.js b/ace-loader/src/genAbc-plugin.js
index a964c3986cff5c0dee0db4eba084f7a1d9a70f65..5be3ed4f5c3290a4f6c6f643270e327f82b21fef 100644
--- a/ace-loader/src/genAbc-plugin.js
+++ b/ace-loader/src/genAbc-plugin.js
@@ -193,7 +193,7 @@ function invokeWorkerToGenAbc() {
   }
 
   filterIntermediateJsBundleByHashJson(buildPathInfo, intermediateJsBundle);
-  const maxWorkerNumber = 3;
+  const maxWorkerNumber = 50;
   const splitedBundles = splitJsBundlesBySize(fileterIntermediateJsBundle, maxWorkerNumber);
   const workerNumber = maxWorkerNumber < splitedBundles.length ? maxWorkerNumber : splitedBundles.length;
   const cmdPrefix = `${nodeJs} --expose-gc "${js2abc}" ${param} `;