diff --git a/Src/Dlhis.Entity/Common/Entities/OperateLogEntity.cs b/Src/Dlhis.Entity/Common/Entities/OperateLogEntity.cs
index b8080855..9844134d 100644
--- a/Src/Dlhis.Entity/Common/Entities/OperateLogEntity.cs
+++ b/Src/Dlhis.Entity/Common/Entities/OperateLogEntity.cs
@@ -16,6 +16,6 @@ public class OperateLogEntity : SugarBaseEntity
     public string Content { get; set; }
     
 
-    [SugarColumn(IsNullable = false)]
+    [SugarColumn(IsNullable = true)]
     public string Operator { get; set; }
 }
\ No newline at end of file