diff --git a/Src/Asp.Net/SqlServerTest/Demo/Demo3_Insertable.cs b/Src/Asp.Net/SqlServerTest/Demo/Demo3_Insertable.cs
index 39ce49128..39e7df2c7 100644
--- a/Src/Asp.Net/SqlServerTest/Demo/Demo3_Insertable.cs
+++ b/Src/Asp.Net/SqlServerTest/Demo/Demo3_Insertable.cs
@@ -30,7 +30,7 @@ namespace OrmTest
                 }
             });
 
-            var insertObj = new Order() { Id = 1, Name = "order1",Price=0 };
+            var insertObj = new Order() { Id = 1, Name = "order1", Price = 0 };
             var insertObjs = new List<Order> {
                  new Order() { Id = 11, Name = "order11", Price=0 },
                  new Order() { Id = 12, Name = "order12" , Price=0}
@@ -56,7 +56,43 @@ namespace OrmTest
             };
             db.Insertable(insertObjs).UseSqlServer().ExecuteBlueCopy();
 
+            db.Insertable(new Order()
+            {
+                Name = "订单 1",
+                CustomId = 1,
+                Price = 100,
+                CreateTime = DateTime.Now,
+                Id = 0,
+                Items = new List<OrderItem>() {
+                      new OrderItem(){
+                           CreateTime=DateTime.Now,
+                           OrderId=0,
+                            Price=1,
+                             ItemId=1
+                       }
+                 }
+            })
+            .AddSubList(it => it.Items.First().OrderId).ExecuteReturnPrimaryKey();
+
+            db.CodeFirst.InitTables<SubInsertTest, SubInsertTestItem, SubInsertTestItem1, SubInsertTestItem2>();
+            db.Insertable(new SubInsertTest()
+            {
+                 Name="aa",
+                  SubInsertTestItem1=new SubInsertTestItem1() {
+                      a="nn"
+                  },
+                   SubInsertTestItem=new SubInsertTestItem()
+                   {
+                       Name ="item" ,
+                       TestId=2
+                   }
+            })
+           .AddSubList(it => it.SubInsertTestItem1)
+           .AddSubList(it => it.SubInsertTestItem.TestId)
+            .ExecuteReturnPrimaryKey();
+     
             Console.WriteLine("#### Insertable End ####");
+
         }
     }
 }
diff --git a/Src/Asp.Net/SqlServerTest/Models/SubInsertTest.cs b/Src/Asp.Net/SqlServerTest/Models/SubInsertTest.cs
new file mode 100644
index 000000000..41fe5d982
--- /dev/null
+++ b/Src/Asp.Net/SqlServerTest/Models/SubInsertTest.cs
@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+    public class SubInsertTest
+    {
+        [SqlSugar.SugarColumn(IsPrimaryKey =true,IsIdentity =true)]
+        public int Id { get; set; }
+        public string Name { get; set; }
+        [SqlSugar.SugarColumn(IsIgnore =true)]
+        public SubInsertTestItem SubInsertTestItem { get; set; }
+        [SqlSugar.SugarColumn(IsIgnore = true)]
+        public SubInsertTestItem1 SubInsertTestItem1 { get; set; }
+        [SqlSugar.SugarColumn(IsIgnore = true)]
+        public List<SubInsertTestItem2> SubInsertTestItem2 { get; set; }
+    }
+
+    public class SubInsertTestItem
+    {
+        [SqlSugar.SugarColumn(IsPrimaryKey = true, IsIdentity = true)]
+        public int Id { get; set; }
+        public int TestId { get; set; }
+        public string Name { get; set; }
+    }
+    public class SubInsertTestItem1
+    {
+        public string a { get; set; }
+    }
+    public class SubInsertTestItem2
+    {
+        public int OrderId { get; set; }
+        public int  xid { get; set; }
+        public string a { get; set; }
+    }
+}
diff --git a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
index 5c6382bea..7895aabb9 100644
--- a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
+++ b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
@@ -70,6 +70,7 @@
     <Compile Include="Models\Custom.cs" />
     <Compile Include="Models\EntityMapper.cs" />
     <Compile Include="Models\Mapper.cs" />
+    <Compile Include="Models\SubInsertTest.cs" />
     <Compile Include="Models\Tree.cs" />
     <Compile Include="Models\AttributeTable.cs" />
     <Compile Include="Models\Order.cs" />
diff --git a/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
index 30ad7006f..0bac6db4a 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
@@ -251,6 +251,29 @@ namespace SqlSugar
             diffModel.DiffType = DiffType.insert;
             return this;
         }
+
+        public ISubInsertable<T> AddSubList(Expression<Func<T, object>> items)
+        {
+            Check.Exception(GetPrimaryKeys().Count == 0, typeof(T).Name + " need Primary key");
+            Check.Exception(GetPrimaryKeys().Count > 1, typeof(T).Name + "Multiple primary keys are not supported");
+            Check.Exception(this.InsertObjs.Count() > 1, "SubInserable No Support Insertable(List<T>)");
+            //Check.Exception(items.ToString().Contains(".First().")==false, items.ToString()+ " not supported ");
+
+            string subMemberName;
+            object sublist;
+            SubInsertable<T> result = new SubInsertable<T>();
+            result.GetList(this.InsertObjs,items, out subMemberName, out sublist);
+            result.InsertObject = this.InsertObjs.First();
+            result.Context = this.Context;
+            result.SubList = new Dictionary<string, object>();
+            result.SubList.Add(subMemberName, sublist);
+            result.InsertBuilder = this.InsertBuilder;
+            result.Pk = GetPrimaryKeys().First();
+            result.Entity = this.EntityInfo;
+            return result;
+        }
+
+  
         #endregion
 
         #region Protected Methods
diff --git a/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/SubInserable.cs b/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/SubInserable.cs
new file mode 100644
index 000000000..07c37b416
--- /dev/null
+++ b/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/SubInserable.cs
@@ -0,0 +1,132 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SqlSugar
+{
+    public class SubInsertable<T> : ISubInsertable<T> where T : class, new()
+    {
+        internal EntityInfo Entity { get; set; }
+        internal Dictionary<string, object> SubList { get; set; }
+        internal SqlSugarProvider Context { get; set; }
+        internal T InsertObject { get; set; }
+        internal InsertBuilder InsertBuilder { get; set; }
+        internal string Pk { get; set; }
+
+        public ISubInsertable<T> AddSubList(Expression<Func<T, object>> items)
+        {
+            string subMemberName;
+            object sublist;
+            GetList(new T[] { InsertObject }, items,out subMemberName,out sublist);
+            if (!this.SubList.ContainsKey(subMemberName))
+            {
+                this.SubList.Add(subMemberName, sublist);
+            }
+            return this;
+        }
+
+        public object ExecuteReturnPrimaryKey()
+        {
+            List<ConditionalModel> conModel = new List<ConditionalModel>();
+            int id = this.Context.Insertable(InsertObject).ExecuteReturnIdentity();
+            int count = 1;
+            object pkValue = null;
+            var qureyable = this.Context.Queryable<T>();
+            if (id.ObjToInt() == 0)
+            {
+                var primaryProperty = this.Entity.Columns.FirstOrDefault(it =>
+                                                                                it.PropertyName.Equals(this.Pk, StringComparison.CurrentCultureIgnoreCase) ||
+                                                                                it.DbColumnName.Equals(this.Pk, StringComparison.CurrentCultureIgnoreCase)
+                                                                             );
+                pkValue = primaryProperty.PropertyInfo.GetValue(InsertObject);
+                qureyable.In(pkValue);
+            }
+            else
+            {
+                qureyable.In(id);
+                pkValue = id;
+            }
+            var data = qureyable.First();
+            foreach (var item in this.SubList)
+            {
+
+                Dictionary<string, object> insertDictionary = new Dictionary<string, object>();
+                if (item.Value == null)
+                {
+                    continue;
+                }
+                EntityInfo subEntity = null;
+                if (item.Value is IEnumerable<object>)
+                {
+                    var list=item.Value as  IEnumerable<object>;
+                    if (list.Count() == 0)
+                    {
+                        continue;
+                    }
+                    var type= list.First().GetType();
+                    this.Context.InitMappingInfo(type);
+                    subEntity=this.Context.EntityMaintenance.GetEntityInfo(type);
+                    foreach (var sbItem in list)
+                    {
+                        SetItems(insertDictionary, sbItem, subEntity,item.Key,pkValue);
+                    }
+                }
+                else if (item.Value.GetType().IsClass())
+                {
+                    var type = item.Value.GetType();
+                    this.Context.InitMappingInfo(type);
+                    subEntity = this.Context.EntityMaintenance.GetEntityInfo(type);
+                    SetItems(insertDictionary, item.Value, subEntity,item.Key,pkValue);
+                }
+                count+=this.Context.Insertable(insertDictionary).AS(subEntity.DbTableName).ExecuteCommand();
+            }
+            return count;
+        }
+        public void GetList(T[] inserts,Expression<Func<T, object>> items, out string subMemberName, out object sublist)
+        {
+            var lambdaExpression = (items as LambdaExpression).Body;
+            if (lambdaExpression is UnaryExpression)
+            {
+                lambdaExpression = (lambdaExpression as UnaryExpression).Operand;
+            }
+            MemberExpression subMemberException = lambdaExpression as MemberExpression;
+            subMemberName = subMemberException.Member.Name;
+            MemberExpression listMember = null;
+            sublist = null;
+            if (subMemberException.Expression is MethodCallExpression)
+            {
+                listMember = (subMemberException.Expression as MethodCallExpression).Arguments.First() as MemberExpression;
+
+            }
+            else
+            {
+                listMember = (subMemberException.Expression as MemberExpression);
+            }
+            if (listMember == null)
+            {
+                listMember = (items as LambdaExpression).Body as MemberExpression;
+                subMemberName = Guid.NewGuid().ToString();
+            }
+            sublist = inserts.First().GetType().GetProperty(listMember.Member.Name).GetValue(inserts.First());
+        }
+        private void SetItems(Dictionary<string, object> insertDictionary, object sbItem, EntityInfo subEntity,string key,object pkValue)
+        {
+            foreach (var item in subEntity.Columns)
+            {
+                if (item.IsIdentity||item.IsIgnore)
+                    continue;
+                if (item.PropertyInfo.Name == key)
+                {
+                    insertDictionary.Add(item.DbColumnName, pkValue);
+                }
+                else
+                {
+                    insertDictionary.Add(item.DbColumnName, item.PropertyInfo.GetValue(sbItem));
+                }
+            }
+        }
+    }
+}
diff --git a/Src/Asp.Net/SqlSugar/Interface/ISubInsertable.cs b/Src/Asp.Net/SqlSugar/Interface/ISubInsertable.cs
new file mode 100644
index 000000000..70c75ffc9
--- /dev/null
+++ b/Src/Asp.Net/SqlSugar/Interface/ISubInsertable.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Linq.Expressions;
+
+namespace SqlSugar
+{
+    public interface ISubInsertable<T>  
+    {
+        ISubInsertable<T> AddSubList(Expression<Func<T, object>> items);
+        object ExecuteReturnPrimaryKey();
+    }
+}
\ No newline at end of file
diff --git a/Src/Asp.Net/SqlSugar/Interface/Insertable.cs b/Src/Asp.Net/SqlSugar/Interface/Insertable.cs
index a4522b260..b49e64f0c 100644
--- a/Src/Asp.Net/SqlSugar/Interface/Insertable.cs
+++ b/Src/Asp.Net/SqlSugar/Interface/Insertable.cs
@@ -29,6 +29,7 @@ namespace SqlSugar
         IInsertable<T> IgnoreColumns(params string[]columns);
         IInsertable<T> IgnoreColumns(bool ignoreNullColumn, bool isOffIdentity = false);
 
+        ISubInsertable<T> AddSubList(Expression<Func<T, object>> SubForeignKey);
 
         IInsertable<T> EnableDiffLogEvent(object businessData = null);
         IInsertable<T> RemoveDataCache();
diff --git a/Src/Asp.Net/SqlSugar/SqlSugar.csproj b/Src/Asp.Net/SqlSugar/SqlSugar.csproj
index 4c0fafde4..3984682eb 100644
--- a/Src/Asp.Net/SqlSugar/SqlSugar.csproj
+++ b/Src/Asp.Net/SqlSugar/SqlSugar.csproj
@@ -80,6 +80,8 @@
     <Compile Include="Abstract\FilterProvider\FilterProvider.cs" />
     <Compile Include="Abstract\InsertableProvider\InsertableProvider.cs" />
     <Compile Include="Abstract\DeleteProvider\DeleteableProvider.cs" />
+    <Compile Include="Interface\ISubInsertable.cs" />
+    <Compile Include="Abstract\InsertableProvider\SubInserable.cs" />
     <Compile Include="Abstract\SaveableProvider\SaveableProvider.cs" />
     <Compile Include="CacheScheme\CacheKeyBuider.cs" />
     <Compile Include="CacheScheme\CacheSchemeMain.cs" />