diff --git a/Src/Asp.NetCore2/MongoDbTest/OrmTest/OrmTest.cs b/Src/Asp.NetCore2/MongoDbTest/OrmTest/OrmTest.cs
index 72d3563bf..ba73f40a7 100644
--- a/Src/Asp.NetCore2/MongoDbTest/OrmTest/OrmTest.cs
+++ b/Src/Asp.NetCore2/MongoDbTest/OrmTest/OrmTest.cs
@@ -44,6 +44,12 @@ namespace MongoDbTest
              .Where(it=> it.Id == ids.Last())
             .ExecuteCommand();
 
+            var updateRow4 = db.Updateable<OrderInfo>()
+             .SetColumns(it => it.CreateTime == DateTime.Now) 
+             .SetColumns(it => it.Name == "xx")
+              .Where(it => it.Id == ids.Last())
+             .ExecuteCommand();
+
             var delrow = db.Deleteable(new OrderInfo() { Id = ids.Last() })
               .ExecuteCommand(); 
 
diff --git a/Src/Asp.NetCore2/SqlSugar.MongoDbCore/ExpToSql/VisitorItems/BinaryExpressionTranslator.cs b/Src/Asp.NetCore2/SqlSugar.MongoDbCore/ExpToSql/VisitorItems/BinaryExpressionTranslator.cs
index 2f07d7e58..af0249044 100644
--- a/Src/Asp.NetCore2/SqlSugar.MongoDbCore/ExpToSql/VisitorItems/BinaryExpressionTranslator.cs
+++ b/Src/Asp.NetCore2/SqlSugar.MongoDbCore/ExpToSql/VisitorItems/BinaryExpressionTranslator.cs
@@ -76,8 +76,8 @@ namespace SqlSugar.MongoDbCore
 
             string op = expr.NodeType switch
             {
-                ExpressionType.Equal => value.IsBsonNull ? "$eq" : null,
-                ExpressionType.NotEqual => value.IsBsonNull ? "$ne" : "$ne",
+                ExpressionType.Equal =>    "$eq",
+                ExpressionType.NotEqual =>   "$ne",
                 ExpressionType.GreaterThan => "$gt",
                 ExpressionType.GreaterThanOrEqual => "$gte",
                 ExpressionType.LessThan => "$lt",