diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
index dfb9d5eec..b8d703467 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
@@ -70,6 +70,16 @@ namespace SqlSugar
         {
             throw new NotSupportedException("Can only be used in expressions");
         }
+
+        public static int Rank(object orderByField, object partitionBy)
+        {
+            throw new NotSupportedException("Can only be used in expressions");
+        }
+        public static int Rank(object orderByField)
+        {
+            throw new NotSupportedException("Can only be used in expressions");
+        }
+
         public static int RowCount(object countFiledName,object orderByField, object partitionBy)
         {
             throw new NotSupportedException("Can only be used in expressions");
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs
index af02fa7f8..948ad61fe 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve_Helper.cs
@@ -909,6 +909,8 @@ namespace SqlSugar
                         return this.Context.DbMehtods.Stuff(model);
                     case "RowNumber":
                         return this.Context.DbMehtods.RowNumber(model);
+                    case "Rank":
+                        return this.Context.DbMehtods.RowNumber(model).Replace("row_number() over(", " rank() over(");
                     case "RowCount":
                         return this.Context.DbMehtods.RowCount(model);
                     case "RowSum":