diff --git a/Src/Asp.Net/SqlSugar/Abstract/CodeFirstProvider/CodeFirstProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/CodeFirstProvider/CodeFirstProvider.cs
index 957dd5289..942d0e036 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/CodeFirstProvider/CodeFirstProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/CodeFirstProvider/CodeFirstProvider.cs
@@ -147,7 +147,7 @@ namespace SqlSugar
         }
         public virtual void ExistLogic(EntityInfo entityInfo)
         {
-            if (entityInfo.Columns.HasValue())
+            if (entityInfo.Columns.HasValue()&&entityInfo.IsDisabledUpdateAll==false)
             {
                 //Check.Exception(entityInfo.Columns.Where(it => it.IsPrimarykey).Count() > 1, "Multiple primary keys do not support modifications");
 
@@ -184,10 +184,13 @@ namespace SqlSugar
                     this.Context.DbMaintenance.AddColumn(tableName, EntityColumnToDbColumn(entityInfo, tableName, item));
                     isChange = true;
                 }
-                foreach (var item in dropColumns)
+                if (entityInfo.IsDisabledDelete)
                 {
-                    this.Context.DbMaintenance.DropColumn(tableName, item.DbColumnName);
-                    isChange = true;
+                    foreach (var item in dropColumns)
+                    {
+                        this.Context.DbMaintenance.DropColumn(tableName, item.DbColumnName);
+                        isChange = true;
+                    }
                 }
                 foreach (var item in alterColumns)
                 {
diff --git a/Src/Asp.Net/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs b/Src/Asp.Net/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
index ead07bae4..7d14b2fae 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/EntityMaintenance/EntityMaintenance.cs
@@ -28,6 +28,8 @@ namespace SqlSugar
                     var sugarTable = (SugarTable)sugarAttributeInfo;
                     result.DbTableName = sugarTable.TableName;
                     result.TableDescription = sugarTable.TableDescription;
+                    result.IsDisabledUpdateAll = sugarTable.IsDisabledUpdateAll;
+                    result.IsDisabledDelete = sugarTable.IsDisabledDelete;
                 }
                 if (this.Context.Context.CurrentConnectionConfig.ConfigureExternalServices != null && this.Context.CurrentConnectionConfig.ConfigureExternalServices.EntityNameService != null) {
                     if (result.DbTableName == null)
diff --git a/Src/Asp.Net/SqlSugar/Entities/EntityInfo.cs b/Src/Asp.Net/SqlSugar/Entities/EntityInfo.cs
index f3241b098..da330a830 100644
--- a/Src/Asp.Net/SqlSugar/Entities/EntityInfo.cs
+++ b/Src/Asp.Net/SqlSugar/Entities/EntityInfo.cs
@@ -15,5 +15,7 @@ namespace SqlSugar
         public string TableDescription { get; set; }
         public Type Type { get; set; }
         public List<EntityColumnInfo> Columns { get; set; }
+        public bool IsDisabledDelete { get;  set; }
+        public bool IsDisabledUpdateAll { get; set; }
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs b/Src/Asp.Net/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs
index 63c571f66..ee85b110f 100644
--- a/Src/Asp.Net/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs
+++ b/Src/Asp.Net/SqlSugar/Entities/Mapping/SugarMappingAttribute.cs
@@ -11,6 +11,9 @@ namespace SqlSugar
         private SugarTable() { }
         public string TableName { get; set; }
         public string TableDescription { get; set; }
+        public bool IsDisabledDelete { get; set; }
+        public bool IsDisabledUpdateAll { get; set; }
+
         public SugarTable(string tableName) {
             this.TableName = tableName;
         }
@@ -19,6 +22,13 @@ namespace SqlSugar
             this.TableName = tableName;
             this.TableDescription = tableDescription;
         }
+
+        public SugarTable(string tableName, string tableDescription,bool isDisabledDelete)
+        {
+            this.TableName = tableName;
+            this.TableDescription = tableDescription;
+            this.IsDisabledDelete = isDisabledDelete;
+        }
     }
    [AttributeUsage(AttributeTargets.Property , Inherited = true)]
     public class SugarColumn : Attribute
diff --git a/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs b/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs
index 59327c3f4..7375061fc 100644
--- a/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs
+++ b/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs
@@ -31,5 +31,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("5.0.2.6")]
-[assembly: AssemblyFileVersion("5.0.2.6")]
+[assembly: AssemblyVersion("5.0.2.7")]
+[assembly: AssemblyFileVersion("5.0.2.7")]
diff --git a/Src/Asp.Net/SqlSugar/Realization/Sqlite/CodeFirst/SqliteCodeFirst.cs b/Src/Asp.Net/SqlSugar/Realization/Sqlite/CodeFirst/SqliteCodeFirst.cs
index 57a1c3e02..59f9c8aa6 100644
--- a/Src/Asp.Net/SqlSugar/Realization/Sqlite/CodeFirst/SqliteCodeFirst.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/Sqlite/CodeFirst/SqliteCodeFirst.cs
@@ -9,7 +9,7 @@ namespace SqlSugar
     {
         public override void ExistLogic(EntityInfo entityInfo)
         {
-            if (entityInfo.Columns.HasValue())
+            if (entityInfo.Columns.HasValue()&&entityInfo.IsDisabledUpdateAll==false)
             {
                 Check.Exception(entityInfo.Columns.Where(it => it.IsPrimarykey).Count() > 1, "Use Code First ,The primary key must not exceed 1");