diff --git a/Src/Asp.Net/SqlServerTest/Program.cs b/Src/Asp.Net/SqlServerTest/Program.cs
index f600785c3..6d46a63bf 100644
--- a/Src/Asp.Net/SqlServerTest/Program.cs
+++ b/Src/Asp.Net/SqlServerTest/Program.cs
@@ -27,7 +27,7 @@ namespace OrmTest
             DemoA_DbMain.Init();
             DemoB_Aop.Init();
             DemoC_GobalFilter.Init();
-            DemoD_DbFirst.Init();;
+            //DemoD_DbFirst.Init();;
             DemoE_CodeFirst.Init();
             DemoF_Utilities.Init();
             DemoG_SimpleClient.Init();
@@ -36,7 +36,7 @@ namespace OrmTest
             DemoL_Snowflake.Init();
             DemoM_UnitOfWork.Init();
             //Unit test
-            NewUnitTest.Init();
+            //NewUnitTest.Init();
 
             //Rest Data
             NewUnitTest.RestData();
diff --git a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
index 50bc783e7..1140804a6 100644
--- a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
+++ b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
@@ -99,6 +99,7 @@
     <Compile Include="UnitTest\Models\TestModel.cs" />
     <Compile Include="UnitTest\Models\UserEntity.cs" />
     <Compile Include="UnitTest\Models\UserRoleEntity.cs" />
+    <Compile Include="UnitTest\UCustom016.cs" />
     <Compile Include="UnitTest\UCustom015.cs" />
     <Compile Include="UnitTest\UCustom014.cs" />
     <Compile Include="UnitTest\UCustom013.cs" />
diff --git a/Src/Asp.Net/SqlServerTest/UnitTest/Main.cs b/Src/Asp.Net/SqlServerTest/UnitTest/Main.cs
index 5cf97a64a..9cb5f183e 100644
--- a/Src/Asp.Net/SqlServerTest/UnitTest/Main.cs
+++ b/Src/Asp.Net/SqlServerTest/UnitTest/Main.cs
@@ -31,6 +31,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            UCustom016.Init();
             UCustom015.Init();
             UCustom014.Init();
             UCustom013.Init();
diff --git a/Src/Asp.Net/SqlServerTest/UnitTest/UCustom016.cs b/Src/Asp.Net/SqlServerTest/UnitTest/UCustom016.cs
new file mode 100644
index 000000000..1d594e7cc
--- /dev/null
+++ b/Src/Asp.Net/SqlServerTest/UnitTest/UCustom016.cs
@@ -0,0 +1,60 @@
+using OrmTest.UnitTest.Models;
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+    public class UCustom016
+    {
+
+        public static void Init()
+        {
+            var db = NewUnitTest.Db;
+
+ 
+
+            db.CodeFirst.InitTables<A1, B1, ABMapping1>();
+            db.DbMaintenance.TruncateTable<A1>();
+            db.DbMaintenance.TruncateTable<B1>();
+            db.DbMaintenance.TruncateTable<ABMapping1>();
+            db.Insertable(new A1() { Id = Guid.NewGuid(), Name = "a1" }).ExecuteCommand();
+           
+            db.Insertable(new B1() { Id = Guid.NewGuid(), Name = "b1" }).ExecuteCommand();
+            db.Insertable(new B1() { Id = Guid.NewGuid(), Name = "b2" }).ExecuteCommand();
+            db.Insertable(new ABMapping1() { AId = Guid.NewGuid(), BId = Guid.NewGuid() }).ExecuteCommand();
+            db.Queryable<A1>().Includes(X => X.BList).ToList();
+        }
+        [SugarTable("ABMapping1Guid")]
+        public class ABMapping1
+        {
+            [SugarColumn(IsPrimaryKey = true )]
+            public Guid AId { get; set; }
+            [SugarColumn(IsPrimaryKey = true)]
+            public Guid BId { get; set; }
+        }
+        [SugarTable("A1Guid")]
+        public class A1
+        {
+            [SugarColumn(IsPrimaryKey = true  )]
+            public Guid Id { get; set; }
+            public string Name { get; set; }
+            [Navigate(typeof(ABMapping1),nameof(ABMapping1.AId),nameof(ABMapping1.BId))]
+            public List<B1> BList { get; set; }
+        }
+        [SugarTable("B1Guid")]
+        public class B1
+        {
+            [SugarColumn(IsPrimaryKey = true )]
+            public Guid Id { get; set; }
+            public string Name { get; set; }
+            [Navigate(typeof(ABMapping1), nameof(ABMapping1.BId), nameof(ABMapping1.AId))]
+            public List<A1> AList { get; set; }
+        }
+ 
+
+    }
+}
diff --git a/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs
index 0f22a2399..9a4480915 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs
@@ -201,6 +201,10 @@ namespace SqlSugar
                             {
                                 inValue1 = inValue1.Replace("[null]", "null");
                             }
+                            if (item.CSharpTypeName.EqualCase("guid")&& inValue1=="('')") 
+                            {
+                                inValue1 = $"('{Guid.Empty.ToString()}')";
+                            }
                             builder.AppendFormat(temp, type, item.FieldName.ToSqlFilter(), "IN", inValue1);
                             parameters.Add(new SugarParameter(parameterName, item.FieldValue));
                             break;