diff --git a/Src/Asp.NetCore2/SqlSeverTest/UnitTest/Main.cs b/Src/Asp.NetCore2/SqlSeverTest/UnitTest/Main.cs
index 7b82adc89..cb7b2ccc2 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/UnitTest/Main.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/UnitTest/Main.cs
@@ -30,6 +30,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            UinitUpdateNavOneToOne.Init();
             UnitCreateNavClass.Init();
             UnitBulkMerge.Init();
             UnitBool.Init();
diff --git a/Src/Asp.NetCore2/SqlSeverTest/UnitTest/UinitUpdateNavOneToOne.cs b/Src/Asp.NetCore2/SqlSeverTest/UnitTest/UinitUpdateNavOneToOne.cs
new file mode 100644
index 000000000..382b938f4
--- /dev/null
+++ b/Src/Asp.NetCore2/SqlSeverTest/UnitTest/UinitUpdateNavOneToOne.cs
@@ -0,0 +1,114 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace OrmTest
+{
+    internal class UinitUpdateNavOneToOne
+    {
+
+        public static void Init() 
+        {
+            var db = NewUnitTest.Db;
+            //建表 
+            if (!db.DbMaintenance.IsAnyTable("UserTest", false))
+            {
+                db.CodeFirst.InitTables<UserTest>();
+            }
+            //建表 
+            if (!db.DbMaintenance.IsAnyTable("ShopDataTest", false))
+            {
+                db.CodeFirst.InitTables<ShopDataTest>();
+            }
+            //建表 
+            if (!db.DbMaintenance.IsAnyTable("AddressTest", false))
+            {
+                db.CodeFirst.InitTables<AddressTest>();
+            }
+
+
+            while (true)
+            {
+                string uName = "测试用户名";
+                if (!db.Queryable<UserTest>().Where(u => u.Name == uName).Any())
+                {
+                    UserTest userDataAdd = new UserTest();
+                    userDataAdd.Name = uName;
+                    db.Insertable(userDataAdd).ExecuteCommand();
+                }
+
+                //用例代码 
+
+                //if (userData.ShopDataTest==null)
+                //{
+
+                //}
+                UserTest userData = db.Queryable<UserTest>().Where(u => u.Name == uName)
+                 .Includes(u => u.ShopDataTest, u => u.AddressTest)
+                 .First();
+                userData.ShopId = 0;
+                userData.ShopDataTest = new ShopDataTest();
+                userData.ShopDataTest.Name = "店铺名3";
+                userData.ShopDataTest.GuId = 4;
+                userData.ShopDataTest.AddressTest = new AddressTest()
+                {
+                    Name = "地址名称",
+                };
+                bool b = db.UpdateNav(userData)
+                    .Include(u => u.ShopDataTest)
+                    .ThenInclude(u => u.AddressTest)
+                    .ExecuteCommand();
+
+                UserTest userData2 = db.Queryable<UserTest>().Where(u => u.Name == uName)
+                   .Includes(u => u.ShopDataTest, u => u.AddressTest)
+                   .First();
+
+                var address= userData2.ShopDataTest.AddressTest;
+
+            }
+
+        }
+        [SugarTable("AddressTest")]
+        public class AddressTest
+        {
+            [SugarColumn(ColumnName = "GuId", IsPrimaryKey = true, IsIdentity = true)]
+            public long GuId { get; set; }
+
+            [SugarColumn(ColumnName = "Name")]
+            public string Name { get; set; }
+        }
+        [SugarTable("ShopDataTest")]
+        public class ShopDataTest
+        {
+            [SugarColumn(ColumnName = "GuId", IsPrimaryKey = true, IsIdentity = true)]
+            public long GuId { get; set; }
+
+
+            [SugarColumn(ColumnName = "AddressId")]
+            public long AddressId { get; set; }
+
+            [Navigate(NavigateType.OneToOne, nameof(AddressId))]
+            public AddressTest AddressTest { get; set; }
+
+            [SugarColumn(ColumnName = "Name")]
+            public string Name { get; set; }
+        }
+        [SugarTable("UserTest")]
+        public class UserTest
+        {
+            [SugarColumn(ColumnName = "GuId", IsPrimaryKey = true, IsIdentity = true)]
+            public long GuId { get; set; }
+
+            [SugarColumn(ColumnName = "Name")]
+            public string Name { get; set; }
+
+
+            [SugarColumn(ColumnName = "ShopId")]
+            public long ShopId { get; set; }
+
+            [Navigate(NavigateType.OneToOne, nameof(ShopId))]
+            public ShopDataTest ShopDataTest { get; set; }
+        }
+    }
+}