diff --git a/business/jxutils/tasksch/task_man.go b/business/jxutils/tasksch/task_man.go
index fa3d7e42a..37def71b1 100644
--- a/business/jxutils/tasksch/task_man.go
+++ b/business/jxutils/tasksch/task_man.go
@@ -2,6 +2,7 @@ package tasksch
 
 import (
 	"sort"
+	"sync"
 	"time"
 )
 
@@ -12,6 +13,7 @@ var (
 
 type TaskMan struct {
 	taskList map[string]ITask
+	locker   sync.RWMutex
 }
 
 func init() {
@@ -19,6 +21,8 @@ func init() {
 }
 
 func (m *TaskMan) GetTasks(taskID string, fromStatus, toStatus int, lastHours int) (taskList TaskList) {
+	m.locker.RLock()
+	defer m.locker.RUnlock()
 	if lastHours == 0 {
 		lastHours = defLastHours
 	}
@@ -34,6 +38,8 @@ func (m *TaskMan) GetTasks(taskID string, fromStatus, toStatus int, lastHours in
 }
 
 func (m *TaskMan) ManageTask(task ITask) ITask {
+	m.locker.Lock()
+	defer m.locker.Unlock()
 	m.taskList[task.GetID()] = task
 	return task
 }