diff --git a/business/jxutils/tasksch/parallel_task.go b/business/jxutils/tasksch/parallel_task.go
index d402e8a2c..00723b8f5 100644
--- a/business/jxutils/tasksch/parallel_task.go
+++ b/business/jxutils/tasksch/parallel_task.go
@@ -180,6 +180,8 @@ func (task *ParallelTask) Run() {
 		close(task.subFinishChan)
 		task.jobList = nil // 如果不释放，任务被管理的话，会导致内存不能释放
 		task.worker = nil
+		task.subFinishChan = nil
+		task.taskChan = nil
 	})
 }