diff --git a/laws-modules/src/main/java/com/jero/modules/activiti/process/esInitChange/service/impl/ProcessEsInitChangeServiceImpl.java b/laws-modules/src/main/java/com/jero/modules/activiti/process/esInitChange/service/impl/ProcessEsInitChangeServiceImpl.java
index cca73095..d3462dac 100644
--- a/laws-modules/src/main/java/com/jero/modules/activiti/process/esInitChange/service/impl/ProcessEsInitChangeServiceImpl.java
+++ b/laws-modules/src/main/java/com/jero/modules/activiti/process/esInitChange/service/impl/ProcessEsInitChangeServiceImpl.java
@@ -365,6 +365,11 @@ public class ProcessEsInitChangeServiceImpl extends ServiceImpl<ProcessEsInitCha
                 throw new JeroBootException(ResultCommon.EN_STANDARD_NUMBER_CONFLICT);
             }
         }
+        if (initChange.getProjectType().equals(ESPProjectType.MERGE.getValue())) {
+            if (!esUtil.verifyEnStandardNumber(initChange.getNewEnStandardNo())) {
+                throw new JeroBootException(ResultCommon.EN_STANDARD_NUMBER_CONFLICT);
+            }
+        }
     }
 
     public void startRunTask(InitChangeDataVO initChangeData) {