diff --git a/Src/Dlhis.External/Appointment/Dto/AppointmentReceiveItemDto.cs b/Src/Dlhis.External/Appointment/Dto/AppointmentReceiveItemDto.cs
index 257e4058..84fec502 100644
--- a/Src/Dlhis.External/Appointment/Dto/AppointmentReceiveItemDto.cs
+++ b/Src/Dlhis.External/Appointment/Dto/AppointmentReceiveItemDto.cs
@@ -113,7 +113,7 @@ public class AppointmentReceiveItemDto : IValidatableObject
                 yield return new ValidationResult($"{Name}车间区域不可为空", new[] { nameof(ApplyWorkplaceAreas) });
             }
 
-            if (WorkplaceStart >= WorkplaceEnd)
+            if (!WorkplaceStart.HasValue || !WorkplaceEnd.HasValue || WorkplaceStart >= WorkplaceEnd)
             {
                 yield return new ValidationResult($"{Name}车间来访时间有误", new[] { nameof(WorkplaceStart) });
             }