diff --git a/src/main/java/com/webank/webase/front/contract/ContractService.java b/src/main/java/com/webank/webase/front/contract/ContractService.java
index 03a36fe06..6ec222a8e 100644
--- a/src/main/java/com/webank/webase/front/contract/ContractService.java
+++ b/src/main/java/com/webank/webase/front/contract/ContractService.java
@@ -276,7 +276,8 @@ public String deployWithSign(ReqDeploy req) {
         }
 
         // data sign
-        String data = bytecodeBin + encodedConstructor;
+//        String data = bytecodeBin + encodedConstructor;
+        String data = encodedConstructor;
         String signMsg = transService.signMessage(groupId, client, signUserId, "", data);
         // send transaction
         TransactionReceipt receipt = transService.sendMessage(client, signMsg);