diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/WorkflowExecuteThread.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/WorkflowExecuteThread.java
index 92862ae619..085c1d569d 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/WorkflowExecuteThread.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/WorkflowExecuteThread.java
@@ -76,7 +76,6 @@ import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
-import java.util.Map.Entry;
 import java.util.Objects;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
@@ -1172,35 +1171,13 @@ public class WorkflowExecuteThread implements Runnable {
      * @param taskInstance task instance
      */
     private void addTaskToStandByList(TaskInstance taskInstance) {
+        logger.info("add task to stand by list, task name: {} , task id:{}", taskInstance.getName(), taskInstance.getId());
         try {
-            if (readyToSubmitTaskQueue.contains(taskInstance)) {
-                logger.warn("task was found in ready submit queue, task code:{}", taskInstance.getTaskCode());
-                return;
+            if (!readyToSubmitTaskQueue.contains(taskInstance)) {
+                readyToSubmitTaskQueue.put(taskInstance);
             }
-            // need to check if the tasks with same task code is active
-            boolean active = false;
-            Map<Integer, TaskInstance> taskInstanceMap = taskInstanceHashMap.column(taskInstance.getTaskCode());
-            if (taskInstanceMap != null && taskInstanceMap.size() > 0) {
-                for (Entry<Integer, TaskInstance> entry : taskInstanceMap.entrySet()) {
-                    Integer taskInstanceId = entry.getKey();
-                    if (activeTaskProcessorMaps.containsKey(taskInstanceId)) {
-                        TaskInstance latestTaskInstance = processService.findTaskInstanceById(taskInstanceId);
-                        if (latestTaskInstance != null && !latestTaskInstance.getState().typeIsFailure()) {
-                            active = true;
-                            break;
-                        }
-                    }
-                }
-            }
-            if (active) {
-                logger.warn("task was found in active task list, task code:{}", taskInstance.getTaskCode());
-                return;
-            }
-            logger.info("add task to stand by list, task name:{}, task id:{}, task code:{}",
-                    taskInstance.getName(), taskInstance.getId(), taskInstance.getTaskCode());
-            readyToSubmitTaskQueue.put(taskInstance);
         } catch (Exception e) {
-            logger.error("add task instance to readyToSubmitTaskQueue, taskName:{}, task id:{}", taskInstance.getName(), taskInstance.getId(), e);
+            logger.error("add task instance to readyToSubmitTaskQueue, taskName: {}, task id: {}", taskInstance.getName(), taskInstance.getId(), e);
         }
     }