diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/ExecutorServiceImpl.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/ExecutorServiceImpl.java
index 33cc6a2fbea5..8fd4ce47d667 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/ExecutorServiceImpl.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/ExecutorServiceImpl.java
@@ -248,6 +248,9 @@ public boolean checkSubProcessDefinitionValid(ProcessDefinition processDefinitio
         taskDefinitions.stream()
                 .filter(task -> TaskConstants.TASK_TYPE_SUB_PROCESS.equalsIgnoreCase(task.getTaskType()))
                 .forEach(taskDefinition -> processDefinitionCodeSet.add(Long.valueOf(JSONUtils.getNodeString(taskDefinition.getTaskParams(), Constants.CMD_PARAM_SUB_PROCESS_DEFINE_CODE))));
+        if (processDefinitionCodeSet.isEmpty()){
+            return true;
+        }
 
         // check sub releaseState
         List<ProcessDefinition> processDefinitions = processDefinitionMapper.queryByCodes(processDefinitionCodeSet);