diff --git a/business/jxutils/tasksch/parallel_task.go b/business/jxutils/tasksch/parallel_task.go
index 3eecc6cae..18d012c62 100644
--- a/business/jxutils/tasksch/parallel_task.go
+++ b/business/jxutils/tasksch/parallel_task.go
@@ -86,7 +86,7 @@ func NewParallelTask(taskName string, config *ParallelConfig, userName string, w
 	}
 	task := &ParallelTask{
 		subFinishChan: make(chan interface{}, config.ParallelCount),
-		taskChan:      make(chan []interface{}, len(realItemList)+config.ParallelCount), // 确保能装下所有taskitem，加结束标记
+		taskChan:      make(chan []interface{}, len(realItemList)),
 		resultHandler: config.ResultHandler,
 		worker:        worker,
 		jobList:       jobList,
@@ -114,8 +114,8 @@ func (task *ParallelTask) Run() {
 						goto end
 					default:
 						select {
-						case job := <-task.taskChan:
-							if job == nil { // 任务完成
+						case job, ok := <-task.taskChan:
+							if !ok { // 任务完成
 								chanRetVal = retVal
 								goto end
 							} else {
@@ -149,9 +149,7 @@ func (task *ParallelTask) Run() {
 		for _, job := range task.jobList {
 			task.taskChan <- job
 		}
-		for i := 0; i < task.ParallelCount; i++ {
-			task.taskChan <- nil
-		}
+		close(task.taskChan)
 
 		taskResult := make([]interface{}, 0)
 		var taskErr error
@@ -170,9 +168,6 @@ func (task *ParallelTask) Run() {
 		}
 
 		task.locker.Lock()
-		if task.Status != TaskStatusCanceling {
-			close(task.quitChan)
-		}
 		if taskErr != nil { // 如果有错误，肯定就是失败了
 			task.Status = TaskStatusFailed
 		} else {
@@ -190,7 +185,6 @@ func (task *ParallelTask) Run() {
 
 		globals.SugarLogger.Debugf("ParallelTask.Run %s, result:%v, err:%v", task.Name, taskResult, taskErr)
 
-		close(task.finishChan)
 		close(task.subFinishChan)
 
 		if task.resultHandler != nil {
diff --git a/business/jxutils/tasksch/sequence_task.go b/business/jxutils/tasksch/sequence_task.go
index 15912d9ea..5e13fea24 100644
--- a/business/jxutils/tasksch/sequence_task.go
+++ b/business/jxutils/tasksch/sequence_task.go
@@ -57,9 +57,6 @@ func (task *SeqTask) Run() {
 		}
 	EndFor:
 		task.locker.Lock()
-		if task.Status != TaskStatusCanceling {
-			close(task.quitChan)
-		}
 		if taskErr != nil { // 如果有错误，肯定就是失败了
 			task.Status = TaskStatusFailed
 		} else {
@@ -76,8 +73,6 @@ func (task *SeqTask) Run() {
 		task.locker.Unlock()
 
 		globals.SugarLogger.Debugf("SeqTask.Run %s, result:%v, err:%v", task.Name, taskResult, taskErr)
-
-		close(task.finishChan)
 	})
 }
 
diff --git a/business/jxutils/tasksch/task.go b/business/jxutils/tasksch/task.go
index 3ad2317b2..29d0f4cff 100644
--- a/business/jxutils/tasksch/task.go
+++ b/business/jxutils/tasksch/task.go
@@ -101,8 +101,8 @@ func (t *BaseTask) Init(parallelCount, batchSize int, isContinueWhenError bool,
 	t.TerminatedAt = utils.DefaultTimeValue
 	t.TotalItemCount = totalItemCount
 	t.TotalJobCount = totalJobCount
-	t.quitChan = make(chan int, 1)
-	t.finishChan = make(chan int, 1)
+	t.quitChan = make(chan int)
+	t.finishChan = make(chan int)
 	t.Status = TaskStatusWorking
 
 	t.C = t.finishChan
@@ -228,11 +228,17 @@ func (t *BaseTask) run(taskHandler func()) {
 		}()
 
 		taskHandler()
+		select {
+		case <-t.quitChan:
+		default:
+			close(t.quitChan)
+		}
 		for _, subTask := range t.Children {
 			if _, err := subTask.GetResult(0); err != nil {
 				globals.SugarLogger.Warnf("BaseTask run, failed with error:%v", err)
 			}
 		}
+		close(t.finishChan)
 	})
 }