diff --git a/SqlServerTest/Demos/ComplexModel.cs b/SqlServerTest/Demos/ComplexModel.cs
new file mode 100644
index 000000000..9500de3ef
--- /dev/null
+++ b/SqlServerTest/Demos/ComplexModel.cs
@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using SqlSugar;
+using OrmTest.Demo;
+
+namespace OrmTest.Demo
+{
+    public class ComplexModel : DemoBase
+    {
+        public static void Init()
+        {
+            var db = GetInstance();
+            var student = db.Queryable<CMStudent>().ToList();
+        }
+    }
+
+    [SugarTable("Student")]
+    public class CMStudent : ModelContext
+    {
+        public int Id { get; set; }
+        public string Name { get; set; }
+        public int SchoolId { get; set; }
+
+        [SugarColumn(IsIgnore = true)]
+        public CMSchool SchoolSingle
+        {
+            get
+            {
+                return base.CreateMapping<CMSchool>().Single(it => it.Id == this.Id);
+            }
+        }
+
+        [SugarColumn(IsIgnore = true)]
+        public List<CMSchool> SchoolList
+        {
+            get
+            {
+                return base.CreateMapping<CMSchool>().Where(it => it.Id == this.Id).ToList();
+            }
+        }
+    }
+
+    [SugarTable("School")]
+    public class CMSchool
+    {
+        public int Id { get; set; }
+        public string Name { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/SqlServerTest/Program.cs b/SqlServerTest/Program.cs
index b2435bc58..caafd709e 100644
--- a/SqlServerTest/Program.cs
+++ b/SqlServerTest/Program.cs
@@ -42,6 +42,7 @@ namespace OrmTest
             OrmTest.Demo.JoinSql.Init();
             OrmTest.Demo.Filter.Init();
             OrmTest.Demo.MaterSlave.Init();
+            OrmTest.Demo.ComplexModel.Init();
         }
     }
 }
diff --git a/SqlServerTest/SqlServerTest.csproj b/SqlServerTest/SqlServerTest.csproj
index 88d709886..2f4bfeb28 100644
--- a/SqlServerTest/SqlServerTest.csproj
+++ b/SqlServerTest/SqlServerTest.csproj
@@ -48,6 +48,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Config.cs" />
+    <Compile Include="Demos\ComplexModel.cs" />
     <Compile Include="Demos\Filter.cs" />
     <Compile Include="Demos\JoinSql.cs" />
     <Compile Include="Demos\DbFirst.cs" />
diff --git a/SqlSugar/Entities/ModelContext.cs b/SqlSugar/Entities/ModelContext.cs
new file mode 100644
index 000000000..dfa6d6271
--- /dev/null
+++ b/SqlSugar/Entities/ModelContext.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace SqlSugar
+{
+    public class ModelContext
+    {
+        internal SqlSugarClient Context { get; set; }
+        public ISugarQueryable<T> CreateMapping<T>()where T:class,new()
+        {
+            return Context.Queryable<T>();
+        }
+    }
+}
diff --git a/SqlSugar/SqlSugar.csproj b/SqlSugar/SqlSugar.csproj
index d304e4f5f..8633956d5 100644
--- a/SqlSugar/SqlSugar.csproj
+++ b/SqlSugar/SqlSugar.csproj
@@ -64,6 +64,7 @@
     <Compile Include="Abstract\InsertableProvider\InsertableProvider.cs" />
     <Compile Include="Abstract\DeleteProvider\DeleteableProvider.cs" />
     <Compile Include="Abstract\UpdateProvider\UpdateableProvider.cs" />
+    <Compile Include="Entities\ModelContext.cs" />
     <Compile Include="Entities\SchemaInfo.cs" />
     <Compile Include="Entities\SqlFilter.cs" />
     <Compile Include="Enum\DbObjectType.cs" />