diff --git a/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs b/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs
index 003c4dff1..1dfe2536e 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/DbBindProvider/IDataRecordExtensions.cs
@@ -153,6 +153,18 @@ namespace SqlSugar
                 {
                     return UtilMethods.To<T>(dr.GetConvertDouble(i));
                 }
+                if (dr.GetFieldType(i) == UtilConstants.GuidType)
+                {
+                    var data = dr.GetString(i);
+                    if (data.ToString() == "")
+                    {
+                        return UtilMethods.To<T>(null);
+                    }
+                    else
+                    {
+                        return UtilMethods.To<T>(Guid.Parse(data.ToString()));
+                    }
+                }
                 throw new Exception(ex.Message);
             }
         }
diff --git a/Src/Asp.Net/SqliteTest/UnitTest/UJson.cs b/Src/Asp.Net/SqliteTest/UnitTest/UJson.cs
index 354187108..04542f25b 100644
--- a/Src/Asp.Net/SqliteTest/UnitTest/UJson.cs
+++ b/Src/Asp.Net/SqliteTest/UnitTest/UJson.cs
@@ -13,10 +13,10 @@ namespace OrmTest
         {
             Db.CodeFirst.InitTables<UnitJsonTest>();
             Db.DbMaintenance.TruncateTable<UnitJsonTest>();
-            Db.Insertable(new UnitJsonTest() { Order = new Order { Id = 1, Name = "order1" } }).ExecuteCommand();
+            var id=Db.Insertable(new UnitJsonTest() { Order = new Order { Id = 1, Name = "order1" } }).ExecuteReturnIdentity();
             var list = Db.Queryable<UnitJsonTest>().ToList();
             UValidate.Check("order1", list.First().Order.Name, "Json");
-            Db.Updateable(new UnitJsonTest() { Id = 1, Order = new Order { Id = 2, Name = "order2" } }).ExecuteCommand();
+            Db.Updateable(new UnitJsonTest() { Id = id, Order = new Order { Id = 1, Name = "order2" } }).ExecuteCommand();
             list= Db.Queryable<UnitJsonTest>().ToList();
             UValidate.Check("order2", list.First().Order.Name, "Json");
             var list2 = Db.Queryable<UnitJsonTest>().ToList();
diff --git a/Src/Asp.Net/SqliteTest/UnitTest/UQueryable.cs b/Src/Asp.Net/SqliteTest/UnitTest/UQueryable.cs
index bac46dc74..ff6775053 100644
--- a/Src/Asp.Net/SqliteTest/UnitTest/UQueryable.cs
+++ b/Src/Asp.Net/SqliteTest/UnitTest/UQueryable.cs
@@ -78,8 +78,20 @@ namespace OrmTest
                 CheckMan = saleOrderInfo.CheckMan,
                 CheckTime = DateTime.Now
             }, o => o.OrderSn == saleOrderInfo.OrderSn && o.OrderStatus != 1);
+
+            Db.CodeFirst.InitTables<UnitAbc121>();
+            Db.Insertable(new UnitAbc121() {  name="a" }).ExecuteCommand();
+            Db.Insertable(new UnitAbc121() { name = "a", uid=Guid.NewGuid() }).ExecuteCommand();
+            var list10= Db.Queryable<UnitAbc121>().ToList();
         }
 
+
+        public class UnitAbc121
+        {
+            [SugarColumn(IsNullable =true)]
+            public Guid? uid { get; set; }
+            public string name { get; set; }
+        }
         public static class IEnumerbleContains
         {
             public static IEnumerable<Order> Data()