diff --git a/taskschedule/Tnb.TaskScheduler/Listener/GenerateMaintainPlanTimeWorker.cs b/taskschedule/Tnb.TaskScheduler/Listener/GenerateMaintainPlanTimeWorker.cs
index 4cd3f922..4abed741 100644
--- a/taskschedule/Tnb.TaskScheduler/Listener/GenerateMaintainPlanTimeWorker.cs
+++ b/taskschedule/Tnb.TaskScheduler/Listener/GenerateMaintainPlanTimeWorker.cs
@@ -119,6 +119,11 @@ namespace JNPF.TaskScheduler.Listener
                             });
                         }
 
+                        if (spotInsRecordDs.Count<=0)
+                        {
+                            return;
+                        }
+
                         var dbResult = db.Ado.UseTran(() =>
                         {
                             if (tobeCreateList != null && tobeCreateList.Count > 0)
diff --git a/taskschedule/Tnb.TaskScheduler/Listener/GenerateSpotInspectionPlanTimeWorker.cs b/taskschedule/Tnb.TaskScheduler/Listener/GenerateSpotInspectionPlanTimeWorker.cs
index 044515eb..48498fb4 100644
--- a/taskschedule/Tnb.TaskScheduler/Listener/GenerateSpotInspectionPlanTimeWorker.cs
+++ b/taskschedule/Tnb.TaskScheduler/Listener/GenerateSpotInspectionPlanTimeWorker.cs
@@ -148,6 +148,11 @@ namespace JNPF.TaskScheduler.Listener
                                 remark = tobeCreateItem.remark
                             });
                         }
+                        
+                        if (spotInsRecordDs.Count<=0)
+                        {
+                            return;
+                        }
 
                         var dbResult = db.Ado.UseTran(() =>
                         {