diff --git a/Tiobon.Core.Services/Ghre/Ghre_UshioPlanServices.cs b/Tiobon.Core.Services/Ghre/Ghre_UshioPlanServices.cs
index 0a68f4ce..26a86fd8 100644
--- a/Tiobon.Core.Services/Ghre/Ghre_UshioPlanServices.cs
+++ b/Tiobon.Core.Services/Ghre/Ghre_UshioPlanServices.cs
@@ -132,8 +132,8 @@ public class Ghre_UshioPlanServices : BaseServices<Ghre_UshioPlan, Ghre_UshioPla
     {
         if (entity.StaffId != null)
             entity.StaffIds = JsonHelper.ObjToJson(entity.StaffId);
-
-        entity.TrainNum = entity.StaffId.Count;
+        if (entity.TrainNum.IsNotEmptyOrNull())
+            entity.TrainNum = entity.StaffId.Count;
         if (entity.Months != null)
             entity.Month = JsonHelper.ObjToJson(entity.Months);
         var result = await base.Add(entity);
@@ -148,7 +148,8 @@ public class Ghre_UshioPlanServices : BaseServices<Ghre_UshioPlan, Ghre_UshioPla
 
         if (editModel.Months != null)
             editModel.Month = JsonHelper.ObjToJson(editModel.Months);
-        editModel.TrainNum = editModel.StaffId.Count;
+        if (editModel.TrainNum.IsNotEmptyOrNull())
+            editModel.TrainNum = editModel.StaffId.Count;
         var result = await base.Update(Id, editModel, null, ["Status"]);
         return result;
     }