diff --git a/Src/Asp.Net/SqlServerTest/UnitTest/UCustom012.cs b/Src/Asp.Net/SqlServerTest/UnitTest/UCustom012.cs
index b175cb121..959ebc547 100644
--- a/Src/Asp.Net/SqlServerTest/UnitTest/UCustom012.cs
+++ b/Src/Asp.Net/SqlServerTest/UnitTest/UCustom012.cs
@@ -190,25 +190,26 @@ namespace OrmTest
                     x = SqlFunc.Subqueryable<Order>().Where(z => z.Id == it.Id).Any()
                 }).ToList();
 
+            var list6 = db.Queryable<StudentA>()
+         .Includes(x => x.SchoolA, x => x.RoomList)
+         .Includes(x => x.Books).ToList();
+
             db.Deleteable<StudentA>().Where(x => x.SchoolA.TeacherList.Any()).ExecuteCommand();
             db.Deleteable<StudentA>().Where(x => x.SchoolA.School_Name=="a").ExecuteCommand();
             db.Updateable<StudentA>()
                 .SetColumns(it=>it.Name=="a").Where(x => x.SchoolA.School_Name == "a").ExecuteCommand();
 
 
-            var list6=db.Queryable<StudentA>()
-                .Includes(x => x.SchoolA, x => x.RoomList)
-                .Includes(x => x.Books).ToList();
-
+     
 
             db.DbMaintenance.TruncateTable<StudentA, RoomA, BookA>();
-         
+
             //开发中
-            //db.InsertNav(list6)
-            //.ThenInclude(z1 => z1.SchoolA)
-            //.ThenInclude(z1 => z1.RoomList)
-            //.AsNav()
-            //.ThenInclude(z1 => z1.Books);
+            db.InsertNav(list6)
+            .ThenInclude(z1 => z1.SchoolA)
+            .ThenInclude(z1 => z1.RoomList)
+            .AsNav()
+            .ThenInclude(z1 => z1.Books);
 
 
         }
diff --git a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProvider.cs
index 638286b32..4f366233e 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProvider.cs
@@ -12,7 +12,9 @@ namespace SqlSugar
 
         public List<Root> _Roots { get;  set; }
         public List<object> _ParentList { get; set; }
+        public List<object> _RootList { get; set; }
         public EntityInfo _ParentEntity { get; set; }
+        public EntityColumnInfo _ParentPkColumn { get; set; }
         public SqlSugarProvider _Context { get;   set; }
 
 
@@ -22,10 +24,10 @@ namespace SqlSugar
              _Context = _Context,  
              _ParentEntity = null,
               _ParentList=null,
-               _Roots= _Roots
+               _Roots= _Roots ,
+               _ParentPkColumn=this._Context.EntityMaintenance.GetEntityInfo<Root>().Columns.First(it=>it.IsPrimarykey)
             };
         }
-
         public InsertNavProvider<Root, TChild> ThenInclude<TChild>(Expression<Func<T, TChild>> expression) where TChild : class, new()
         {
             InitParentList();
@@ -49,55 +51,28 @@ namespace SqlSugar
             }
             return GetResult<TChild>();
         }
- 
-        private static bool IsDefaultValue(object pvValue)
+        public InsertNavProvider<Root, TChild> ThenInclude<TChild>(Expression<Func<T,List<TChild>>> expression) where TChild : class, new()
         {
-            return pvValue == null || pvValue == UtilMethods.GetDefaultValue(pvValue.GetType());
-        }
-        private void InitParentList()
-        {
-            if (_ParentList == null)
+            InitParentList();
+            var name = ExpressionTool.GetMemberName(expression);
+            var nav = this._ParentEntity.Columns.FirstOrDefault(x => x.PropertyName == name);
+            if (nav.Navigat == null)
             {
-                _ParentList = GetParentList(_Roots).Cast<object>().ToList();
+                Check.ExceptionEasy($"{name} no navigate attribute", $"{this._ParentEntity.EntityName}的属性{name}没有导航属性");
             }
-        }
-
-        private InsertNavProvider<Root, TChild> GetResult<TChild>() where TChild : class, new()
-        {
-            return new InsertNavProvider<Root, TChild>()
+            if (nav.Navigat.NavigatType == NavigateType.OneToOne || nav.Navigat.NavigatType == NavigateType.ManyToOne)
             {
-                _Context = this._Context,
-                _ParentEntity = this._ParentEntity,
-                _ParentList = this._ParentList,
-                _Roots = this._Roots
-            };
-        }
-
-        private List<Type> GetParentList<Type>(List<Type> datas) where Type : class ,new()
-        {
-            List<Type> result = new List<Type>();
-            this._Context.InitMappingInfo<Type>();
-            var entity = this._Context.EntityMaintenance.GetEntityInfo<Type>();
-            var isIdentity = entity.Columns.Where(it=>it.IsIdentity).Any();
-            if (isIdentity)
-            {
-                InsertIdentity(datas);
+                InsertOneToOne<TChild>(name, nav);
             }
-            else 
+            else if (nav.Navigat.NavigatType == NavigateType.OneToMany)
             {
-                this._Context.Insertable(datas).ExecuteCommand();
+                InsertOneToMany<TChild>(name, nav);
             }
-            this._ParentEntity = entity;
-            result = datas;
-            return result;
-        }
-
-        private void InsertIdentity<Type>(List<Type> datas) where Type : class, new()
-        {
-            foreach (var item in datas)
+            else
             {
-                this._Context.Insertable(item).ExecuteCommandIdentityIntoEntity();
+                InsertManyToMany<TChild>(name, nav);
             }
+            return GetResult<TChild>();
         }
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderHelper.cs b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderHelper.cs
new file mode 100644
index 000000000..87d1a06a7
--- /dev/null
+++ b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderHelper.cs
@@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SqlSugar 
+{
+    public partial class InsertNavProvider<Root,T> where T : class,new() where Root:class,new()
+    {
+
+        private static bool IsDefaultValue(object pvValue)
+        {
+            return pvValue == null || pvValue == UtilMethods.GetDefaultValue(pvValue.GetType());
+        }
+        private void InitParentList()
+        {
+            if (_RootList == null)
+            {
+               _RootList= _ParentList = GetRootList(_Roots).Cast<object>().ToList();
+            }
+            else if (_ParentList == null) 
+            {
+                _ParentList = _RootList;
+                var pkColumn = this._Context.EntityMaintenance.GetEntityInfo<T>().Columns.FirstOrDefault(it => it.IsPrimarykey);
+                this._ParentPkColumn = pkColumn;
+            }
+
+        }
+
+        private InsertNavProvider<Root, TChild> GetResult<TChild>() where TChild : class, new()
+        {
+            return new InsertNavProvider<Root, TChild>()
+            {
+                _Context = this._Context,
+                _ParentEntity = this._ParentEntity,
+                _ParentList = this._ParentList,
+                _Roots = this._Roots,
+                _ParentPkColumn=this._ParentPkColumn,
+                _RootList=this._RootList
+            };
+        }
+
+        private List<Type> GetRootList<Type>(List<Type> datas) where Type : class, new()
+        {
+            List<Type> result = new List<Type>();
+            this._Context.InitMappingInfo<Type>();
+            var entity = this._Context.EntityMaintenance.GetEntityInfo<Type>();
+            var pkColumn = entity.Columns.FirstOrDefault(it => it.IsPrimarykey);
+            InsertDatas(datas, pkColumn);
+            this._ParentEntity = entity;
+            result = datas;
+            return result;
+        }
+
+        private void InsertIdentity<Type>(List<Type> datas) where Type : class, new()
+        {
+            foreach (var item in datas)
+            {
+                this._Context.Insertable(item).ExecuteCommandIdentityIntoEntity();
+            }
+        }
+
+        private EntityColumnInfo GetPkColumnByNav(EntityInfo entity,EntityColumnInfo nav)
+        {
+            var pkColumn = entity.Columns.FirstOrDefault(it => it.IsPrimarykey == true);
+            if (nav.Navigat.Name2.HasValue())
+            {
+                pkColumn = _ParentEntity.Columns.FirstOrDefault(it => it.PropertyName == nav.Navigat.Name2);
+            }
+            return pkColumn;
+        }
+        private EntityColumnInfo GetFKColumnByNav(EntityInfo entity, EntityColumnInfo nav)
+        {
+            var fkColumn = entity.Columns.FirstOrDefault(it => it.PropertyName == nav.Navigat.Name);
+            return fkColumn;
+        }
+        private void InsertDatas<TChild>(List<TChild> children, EntityColumnInfo pkColumn) where TChild : class, new()
+        {
+            children = children.Distinct().ToList();
+            var x = this._Context.Storageable(children).WhereColumns(new string[] { pkColumn.PropertyName }).ToStorage();
+            var insertData = children = x.InsertList.Select(it => it.Item).ToList();
+            if (pkColumn.IsIdentity)
+            {
+                InsertIdentity(insertData);
+            }
+            else
+            {
+                this._Context.Insertable(insertData).ExecuteCommand();
+            }
+            this._ParentList = children.Cast<object>().ToList();
+        }
+    }
+}
diff --git a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToMany.cs b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToMany.cs
index 4f05b7804..a4746eb47 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToMany.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToMany.cs
@@ -11,14 +11,46 @@ namespace SqlSugar
 
         private void InsertOneToMany<TChild>(string name, EntityColumnInfo nav) where TChild : class, new()
         {
+            List<TChild> children = new List<TChild>();
             var parentEntity = _ParentEntity;
             var parentList = _ParentList;
-            var parentColumn = parentEntity.Columns.FirstOrDefault(it => it.PropertyName == nav.Navigat.Name);
-            this._ParentEntity = this._Context.EntityMaintenance.GetEntityInfo<TChild>();
+            var parentNavigateProperty = parentEntity.Columns.FirstOrDefault(it => it.PropertyName == name);
+            var thisEntity = this._Context.EntityMaintenance.GetEntityInfo<TChild>();
+            var thisPkColumn = GetPkColumnByNav(thisEntity, nav);
+            var thisFkColumn= GetFKColumnByNav(thisEntity, nav);
+            EntityColumnInfo parentPkColumn = GetParentPkColumn();
             foreach (var item in parentList)
             {
-
+                var parentValue = parentPkColumn.PropertyInfo.GetValue(item);
+                var childs = parentNavigateProperty.PropertyInfo.GetValue(item) as List<TChild>;
+                if (childs != null)
+                {
+                    foreach (var child in childs)
+                    {
+                        thisFkColumn.PropertyInfo.SetValue(child, parentValue, null);
+                    }
+                    children.AddRange(childs);
+                }
             }
+            InsertDatas(children, thisPkColumn);
+            SetNewParent<TChild>(thisEntity,thisPkColumn);
+        }
+
+        private EntityColumnInfo GetParentPkColumn()
+        {
+            EntityColumnInfo parentPkColumn = _ParentPkColumn;
+            if (_ParentPkColumn == null)
+            {
+                _ParentPkColumn= this._ParentEntity.Columns.FirstOrDefault(it => it.IsPrimarykey);
+            }
+
+            return parentPkColumn;
+        }
+
+        private void SetNewParent<TChild>(EntityInfo entityInfo,EntityColumnInfo entityColumnInfo) where TChild : class, new()
+        {
+            this._ParentEntity = entityInfo;
+            this._ParentPkColumn = entityColumnInfo;
         }
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToOne.cs b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToOne.cs
index 01364ba64..672508a8c 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToOne.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/InsertNavProviderOneToOne.cs
@@ -13,9 +13,9 @@ namespace SqlSugar
             var parentEntity = _ParentEntity;
             var parentList = _ParentList;
             var parentColumn = parentEntity.Columns.FirstOrDefault(it => it.PropertyName == nav.Navigat.Name);
-            this._ParentEntity = this._Context.EntityMaintenance.GetEntityInfo<TChild>();
-            EntityColumnInfo pkColumn = GetOneTwoOneChildPkColumn(nav);
-            Check.Exception(pkColumn == null, $" Navigate {parentEntity.EntityName} : {name} is error ", $"导航实体 {parentEntity.EntityName} 属性 {name} 配置错误");
+            var thisEntity = this._Context.EntityMaintenance.GetEntityInfo<TChild>();
+            EntityColumnInfo thisPkColumn = GetPkColumnByNav(thisEntity, nav);
+            Check.Exception(thisPkColumn == null, $" Navigate {parentEntity.EntityName} : {name} is error ", $"导航实体 {parentEntity.EntityName} 属性 {name} 配置错误");
             List<TChild> childList = new List<TChild>();
             foreach (var parent in parentList)
             {
@@ -25,38 +25,20 @@ namespace SqlSugar
                 {
                     if (IsDefaultValue(navPropertyValue))
                     {
-                        var pkValue = pkColumn.PropertyInfo.GetValue(childItem);
+                        var pkValue = thisPkColumn.PropertyInfo.GetValue(childItem);
                         if (IsDefaultValue(navPropertyValue))
                         {
                             navPropertyValue = pkValue;
                         }
                     }
-                    pkColumn.PropertyInfo.SetValue(childItem, navPropertyValue);
+                    thisPkColumn.PropertyInfo.SetValue(childItem, navPropertyValue);
                     childList.Add(childItem);
                 }
             }
-            var x = this._Context.Storageable(childList).WhereColumns(new string[] { pkColumn.PropertyName }).ToStorage();
-            if (pkColumn.IsIdentity)
-            {
-                InsertIdentity(x.InsertList.Select(it => it.Item).ToList());
-            }
-            else
-            {
-                x.AsInsertable.ExecuteCommand();
-            }
+            InsertDatas<TChild>(childList,thisPkColumn);
             this._ParentList = childList.Cast<object>().ToList();
+            SetNewParent<TChild>(thisEntity, thisPkColumn);
         }
-
-        private EntityColumnInfo GetOneTwoOneChildPkColumn(EntityColumnInfo nav)
-        {
-            var pkColumn = _ParentEntity.Columns.FirstOrDefault(it => it.IsPrimarykey == true);
-            if (nav.Navigat.Name2.HasValue())
-            {
-                pkColumn = _ParentEntity.Columns.FirstOrDefault(it => it.PropertyName == nav.Navigat.Name2);
-            }
-
-            return pkColumn;
-        }
-
+ 
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/SqlSugar.csproj b/Src/Asp.Net/SqlSugar/SqlSugar.csproj
index 70e934592..39088b4c6 100644
--- a/Src/Asp.Net/SqlSugar/SqlSugar.csproj
+++ b/Src/Asp.Net/SqlSugar/SqlSugar.csproj
@@ -89,6 +89,7 @@
     <Compile Include="Abstract\DeleteProvider\SplitTableDeleteByObjectProvider.cs" />
     <Compile Include="Abstract\DeleteProvider\SplitTableDeleteProvider.cs" />
     <Compile Include="Abstract\EntityMaintenance\EntityMaintenance.cs" />
+    <Compile Include="Abstract\ExecuteNavProvider\InsertNavProviderHelper.cs" />
     <Compile Include="Abstract\ExecuteNavProvider\InsertNavProviderOneToMany.cs" />
     <Compile Include="Abstract\ExecuteNavProvider\InsertNavProviderManyToMany.cs" />
     <Compile Include="Abstract\ExecuteNavProvider\InsertNavProviderOneToOne.cs" />