diff --git a/Src/Asp.Net/SqlServerTest/UnitTest/UQueryable.cs b/Src/Asp.Net/SqlServerTest/UnitTest/UQueryable.cs
index 7928a1ef4..fce379d5e 100644
--- a/Src/Asp.Net/SqlServerTest/UnitTest/UQueryable.cs
+++ b/Src/Asp.Net/SqlServerTest/UnitTest/UQueryable.cs
@@ -160,6 +160,7 @@ namespace OrmTest
             {
                 throw new Exception("unit query error");
             }
+            db.Queryable<Order>().Where(it => SqlFunc.Round(it.Id, 2) == SqlFunc.Abs(it.Id)).ToList();
         }
 
 
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
index d48b243fb..a32862ff8 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
@@ -487,7 +487,8 @@ namespace SqlSugar
         public string Round(MethodCallExpressionModel model)
         {
             var parameter = model.Args[0];
-            return string.Format("  ROUND({0},{1}) ", parameter.MemberName);
+            var parameter2= model.Args[1];
+            return string.Format("  ROUND({0},{1}) ", parameter.MemberName, parameter2.MemberName);
         }
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
index eebb04310..9f90fd9a4 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
@@ -133,7 +133,7 @@ namespace SqlSugar
 
 
         public static T Abs<T>( T value) { throw new NotSupportedException("Can only be used in expressions"); }
-        public static string Round<T>(T value,int precision) { throw new NotSupportedException("Can only be used in expressions"); }
+        public static T Round<T>(T value,int precision) { throw new NotSupportedException("Can only be used in expressions"); }
 
         /// <summary>
         /// Subquery