diff --git a/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs b/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs
index 29e079e6..5373f5fb 100644
--- a/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs
+++ b/Src/Dlhis.ScheduledTask/TaskAssignment/Services/Implements/AssignmentService.cs
@@ -280,7 +280,7 @@ public class AssignmentService : IAssignmentService
                     Brand = deviceTemplate.Brand,
                     FuncStr = device.Funcs.ToString(),
                     UserNo = deviceTask.UserNo,
-                    UserCode = SqlFunc.IsNull(ga.Code, gaLeave.Code),
+                    UserCode = SqlFunc.IsNull(SqlFunc.IsNull(ga.Code, gaLeave.Code), deviceTask.UserNo),
                     UserName = SqlFunc.IsNull(ga.Name, gaLeave.Name),
                     DepartmentNo = ga.DepartmentNo,
                     DepartmentName = department.Name,