diff --git a/dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterSchedulerService.java b/dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterSchedulerService.java
index f8a1ef6a9e..2202cc57fb 100644
--- a/dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterSchedulerService.java
+++ b/dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterSchedulerService.java
@@ -179,10 +179,6 @@ public class MasterSchedulerService extends Thread {
     }
 
     private List<ProcessInstance> command2ProcessInstance(List<Command> commands) {
-        if (CollectionUtils.isEmpty(commands)) {
-            return null;
-        }
-
         List<ProcessInstance> processInstances = new ArrayList<>(commands.size());
         CountDownLatch latch = new CountDownLatch(commands.size());
         for (final Command command : commands) {