diff --git a/Src/Asp.Net/SqlServerTest/Demos/4_Delete.cs b/Src/Asp.Net/SqlServerTest/Demos/4_Delete.cs
index 3258548d1..e02e99cec 100644
--- a/Src/Asp.Net/SqlServerTest/Demos/4_Delete.cs
+++ b/Src/Asp.Net/SqlServerTest/Demos/4_Delete.cs
@@ -25,6 +25,8 @@ namespace OrmTest.Demo
 
             //by primary key array
             var t4 = db.Deleteable<Student>().In(new int[] { 1, 2 }).ExecuteCommand();
+            var t41 = db.Deleteable<Student>().In(new int[] { 1, 2 }.Select(it=>it)).ExecuteCommand();
+            var t42 = db.Deleteable<Student>().In(new int[] { 1, 2 }.AsEnumerable()).ExecuteCommand();
 
             //by expression   id>1 and id==1
             var t5 = db.Deleteable<Student>().Where(it => it.Id > 1).Where(it => it.Id == 1).ExecuteCommand();
diff --git a/Src/Asp.Net/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
index 06b966cef..f6925cd03 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 using System.Linq.Expressions;
@@ -231,6 +232,17 @@ namespace SqlSugar
 
         public IDeleteable<T> In<PkType>(PkType primaryKeyValue)
         {
+            if (typeof(PkType).FullName.IsCollectionsList())
+            {
+                var newValues = new List<object>();
+                foreach (var item in primaryKeyValue as IEnumerable)
+                {
+                    newValues.Add(item);
+                }
+                return In(newValues);
+            }
+
+
             In(new PkType[] { primaryKeyValue });
             return this;
         }
diff --git a/Src/Asp.Net/SqlSugar/Utilities/ValidateExtensions.cs b/Src/Asp.Net/SqlSugar/Utilities/ValidateExtensions.cs
index 56c670467..df518b73f 100644
--- a/Src/Asp.Net/SqlSugar/Utilities/ValidateExtensions.cs
+++ b/Src/Asp.Net/SqlSugar/Utilities/ValidateExtensions.cs
@@ -151,7 +151,7 @@ namespace SqlSugar
         }
         public static bool IsCollectionsList(this string thisValue)
         {
-            return (thisValue + "").StartsWith("System.Collections.Generic.List");
+            return (thisValue + "").StartsWith("System.Collections.Generic.List")|| (thisValue + "").StartsWith("System.Collections.Generic.IEnumerable");
         }
         public static bool IsStringArray(this string thisValue)
         {