diff --git a/src/Shentun.WebPeis.Application/AppointSchedules/AppointScheduleAppService.cs b/src/Shentun.WebPeis.Application/AppointSchedules/AppointScheduleAppService.cs
index 6d761a6..0f79f09 100644
--- a/src/Shentun.WebPeis.Application/AppointSchedules/AppointScheduleAppService.cs
+++ b/src/Shentun.WebPeis.Application/AppointSchedules/AppointScheduleAppService.cs
@@ -60,7 +60,7 @@ namespace Shentun.WebPeis.AppointSchedules
             if (input == null ||  input.MedicalCenterId == Guid.Empty || input.MedicalCenterId == null)
             {
                 var webPeisOrganizationUnit = await _webPeisOrganizationUnitManager.GetMedicalCenterListAsync();
-                if (webPeisOrganizationUnit.Count > 1)
+                if (webPeisOrganizationUnit.Count > 1 || webPeisOrganizationUnit.Count == 0)
                 {
                     throw new UserFriendlyException("体检中心参数不能为空");      
                 }