diff --git a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/DeleteNavManyToMany.cs b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/DeleteNavManyToMany.cs
index c68913a50..0b2438b60 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/DeleteNavManyToMany.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/ExecuteNavProvider/DeleteNavManyToMany.cs
@@ -40,7 +40,7 @@ namespace SqlSugar
 
 
             var childList = GetChildList<TChild>().In(thisPkColumn.DbColumnName, bids).ToList();
-            if (bids.Count != childList.Count) 
+            if (_WhereList.HasValue()) 
             {
                 bids = childList.Select(it => thisPkColumn.PropertyInfo.GetValue(it)).ToList();
             }
@@ -55,9 +55,20 @@ namespace SqlSugar
             this._ParentPkColumn = thisPkColumn;
             this._IsDeletedParant = true;
 
-            SetContext(() => _Context.Deleteable<object>().AS(mappingEntity.DbTableName).In(
-                mappingA.DbColumnName, aids
-                ).ExecuteCommand());
+
+            if (_WhereList.HasValue())
+            {
+                SetContext(() => _Context.Deleteable<object>().AS(mappingEntity.DbTableName)
+                .In(mappingA.DbColumnName, aids)
+                .In(mappingB.DbColumnName, bids)
+                .ExecuteCommand());
+            }
+            else
+            {
+                SetContext(() => _Context.Deleteable<object>().AS(mappingEntity.DbTableName).In(
+                    mappingA.DbColumnName, aids
+                    ).ExecuteCommand());
+            }
 
         }
 
diff --git a/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec b/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
index c22ed32aa..9b65aa0bc 100644
--- a/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
+++ b/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
@@ -2,7 +2,7 @@
 <package >
   <metadata>
     <id>SqlSugarCore</id>
-    <version>5.0.9.5-preview03</version>
+    <version>5.0.9.5-preview04</version>
     <authors>sunkaixuan</authors>
     <owners>果糖大数据科技</owners>
     <licenseUrl>http://www.apache.org/licenses/LICENSE-2.0.html</licenseUrl>