diff --git a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
index e7d96f390..0b2b37981 100644
--- a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
+++ b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
@@ -97,6 +97,7 @@
     <Compile Include="Models\OrderItem.cs" />
     <Compile Include="Demo\Demo0_SqlSugarClient.cs" />
     <Compile Include="Models\ViewOrder.cs" />
+    <Compile Include="UnitTest\UnitInsertNav2.cs" />
     <Compile Include="UnitTest\UnitInsertNav.cs" />
     <Compile Include="UnitTest\UnitSelectN.cs" />
     <Compile Include="UnitTest\UnitOneToOneN2.cs" />
diff --git a/Src/Asp.Net/SqlServerTest/UnitTest/Main.cs b/Src/Asp.Net/SqlServerTest/UnitTest/Main.cs
index 26b731f79..24197d562 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()
         {
+            UnitInsertNav2.Init();
             UnitInsertNav.Init();
             UnitInsertNav.Init();
             UnitSelectN.Init();
diff --git a/Src/Asp.Net/SqlServerTest/UnitTest/UnitInsertNav2.cs b/Src/Asp.Net/SqlServerTest/UnitTest/UnitInsertNav2.cs
new file mode 100644
index 000000000..00ee7c3f6
--- /dev/null
+++ b/Src/Asp.Net/SqlServerTest/UnitTest/UnitInsertNav2.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+
+using SqlSugar;
+
+namespace OrmTest
+{
+    public class UnitInsertNav2
+    {
+       public  static void Init()
+        {
+            var db = NewUnitTest.Db; 
+            //建表 
+            db.CodeFirst.InitTables<Country, Province, City>();
+            db.DbMaintenance.TruncateTable<Country, Province, City>();
+
+            //插入一级导航数据
+            var country = new Country
+            {
+                Id = 1,
+                Provinces = new List<Province> {
+                    new Province{
+                        Id = 1,
+                        CountryId = 1
+                    },
+                }
+            };
+            db.InsertNav(country)
+                .Include(it => it.Provinces)
+                .ExecuteCommand();
+
+            //构造二级导航数据
+            country.Provinces[0].Cities = new List<City>
+            {
+                new City
+                {
+                    Id = 1,
+                    ProvinceId = 1
+                }
+            };
+
+            //用例代码 
+            var result = db.InsertNav(country)
+                .Include(it => it.Provinces)
+                .ThenInclude(it => it.Cities)
+                .ExecuteCommand();//用例代码
+            if (!db.Queryable<City>().Where(it => it.Id == 1).Any())
+                throw new Exception("未插入二级导航数据");
+        }
+
+
+        //建类
+        [SugarTable("Unitaaa1Country")]
+        public class Country
+        {
+            [SugarColumn(IsPrimaryKey = true)]
+            public long Id { get; set; }
+            [SugarColumn(IsIgnore = true)]
+            [Navigate(NavigateType.OneToMany, nameof(Province.CountryId))]
+            public List<Province> Provinces { get; set; }
+        }
+        [SugarTable("Unitaaa1Province")]
+        public class Province
+        {
+            [SugarColumn(IsPrimaryKey = true)]
+            public long Id { get; set; }
+            public long CountryId { get; set; }
+            [SugarColumn(IsIgnore = true)]
+            [Navigate(NavigateType.OneToMany, nameof(City.ProvinceId))]
+            public List<City> Cities { get; set; }
+        }
+        [SugarTable("Unitaaa1City")]
+        public class City
+        {
+            [SugarColumn(IsPrimaryKey = true)]
+            public long Id { get; set; }
+            public long ProvinceId { get; set; }
+        }
+    }
+}
\ No newline at end of file