diff --git a/Src/Asp.Net/SqlServerTest/Demos/1_Query.cs b/Src/Asp.Net/SqlServerTest/Demos/1_Query.cs
index 1985fa315..0750c2e30 100644
--- a/Src/Asp.Net/SqlServerTest/Demos/1_Query.cs
+++ b/Src/Asp.Net/SqlServerTest/Demos/1_Query.cs
@@ -318,6 +318,12 @@ namespace OrmTest.Demo
 
             var getUnionAllList2 = db.UnionAll(db.Queryable<Student>(), db.Queryable<Student>()).ToList();
 
+            var getUnionAllList3= db.UnionAll(db.Queryable<Student>()
+                .Select(it => new Student { Id =SqlFunc.ToInt32(1) ,Name=SqlFunc.ToString("2"), SchoolId = Convert.ToInt32(3) })
+                , db.Queryable<Student>()
+                .Select(it => new Student { Id = SqlFunc.ToInt32(11) , Name = SqlFunc.ToString("22") , SchoolId=Convert.ToInt32(33)}))
+                .Select(it=>new Student() { Id=SqlFunc.ToInt32(111), Name = SqlFunc.ToString("222") }).ToList();
+
             var test1 = db.Queryable<Student, School>((st, sc) => st.SchoolId == sc.Id).Where(st=>st.CreateTime>SqlFunc.GetDate()).Select((st, sc) => SqlFunc.ToInt64(sc.Id)).ToList();
             var test2 = db.Queryable<Student, School>((st, sc) => st.SchoolId == sc.Id)
                       .Where(st =>
diff --git a/Src/Asp.Net/SqlSugar/SqlSugarClient.cs b/Src/Asp.Net/SqlSugar/SqlSugarClient.cs
index 350b1740c..457efd0f0 100644
--- a/Src/Asp.Net/SqlSugar/SqlSugarClient.cs
+++ b/Src/Asp.Net/SqlSugar/SqlSugarClient.cs
@@ -351,7 +351,7 @@ namespace SqlSugar
             var shortName1 = joinExpression.Parameters[0].Name;
             var sqlObj1 = joinQueryable1.ToSql();
             string sql1 = sqlObj1.Key;
-            UtilMethods.RepairReplicationParameters(ref sql1, sqlObj1.Value.ToArray(), 0);
+            UtilMethods.RepairReplicationParameters(ref sql1, sqlObj1.Value.ToArray(), 0,"Join");
             queryable.QueryBuilder.EntityName = sqlBuilder.GetPackTable(sql1, shortName1); ;
             queryable.QueryBuilder.Parameters.AddRange(sqlObj1.Value);
 
@@ -359,7 +359,7 @@ namespace SqlSugar
             var shortName2 = joinExpression.Parameters[1].Name;
             var sqlObj2 = joinQueryable2.ToSql();
             string sql2 = sqlObj2.Key;
-            UtilMethods.RepairReplicationParameters(ref sql2, sqlObj2.Value.ToArray(), 1);
+            UtilMethods.RepairReplicationParameters(ref sql2, sqlObj2.Value.ToArray(), 1, "Join");
             queryable.QueryBuilder.Parameters.AddRange(sqlObj2.Value);
             var exp = queryable.QueryBuilder.GetExpressionValue(joinExpression, ResolveExpressType.WhereMultiple);
             queryable.QueryBuilder.JoinQueryInfos.Add(new JoinQueryInfo() { JoinIndex = 0, JoinType = joinType, JoinWhere = exp.GetResultString(), TableName = sqlBuilder.GetPackTable(sql2, shortName2) });
@@ -378,7 +378,7 @@ namespace SqlSugar
             {
                 var sqlObj = item.ToSql();
                 string sql = sqlObj.Key;
-                UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i);
+                UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i, "UnionAll");
                 if (sqlObj.Value.HasValue())
                     allItems.Add(new KeyValuePair<string, List<SugarParameter>>(sql, sqlObj.Value));
                 else
@@ -406,7 +406,7 @@ namespace SqlSugar
             {
                 var sqlObj = item.ToSql();
                 string sql = sqlObj.Key;
-                UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i);
+                UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i, "Union");
                 if (sqlObj.Value.HasValue())
                     allItems.Add(new KeyValuePair<string, List<SugarParameter>>(sql, sqlObj.Value));
                 else
diff --git a/Src/Asp.Net/SqlSugar/Utilities/UtilMethods.cs b/Src/Asp.Net/SqlSugar/Utilities/UtilMethods.cs
index 821b2b45d..945aaf8c3 100644
--- a/Src/Asp.Net/SqlSugar/Utilities/UtilMethods.cs
+++ b/Src/Asp.Net/SqlSugar/Utilities/UtilMethods.cs
@@ -68,7 +68,7 @@ namespace SqlSugar
             return (T)Convert.ChangeType(obj, typeof(T));
         }
 
-        internal static void RepairReplicationParameters(ref string appendSql, SugarParameter[] parameters, int addIndex)
+        internal static void RepairReplicationParameters(ref string appendSql, SugarParameter[] parameters, int addIndex,string append=null)
         {
             if (appendSql.HasValue() && parameters.HasValue())
             {
@@ -76,7 +76,7 @@ namespace SqlSugar
                 {
                     //Compatible with.NET CORE parameters case
                     var name = parameter.ParameterName;
-                    string newName = name + addIndex;
+                    string newName = name +append+ addIndex;
                     appendSql = appendSql.Replace(name, newName);
                     parameter.ParameterName = newName;
                 }