diff --git a/Providers/FreeSql.Provider.MySql/MySqlExpression.cs b/Providers/FreeSql.Provider.MySql/MySqlExpression.cs
index d7339eac..ee3ec1bb 100644
--- a/Providers/FreeSql.Provider.MySql/MySqlExpression.cs
+++ b/Providers/FreeSql.Provider.MySql/MySqlExpression.cs
@@ -278,9 +278,9 @@ namespace FreeSql.MySql
                             var locateArgs1 = getExp(exp.Arguments[1]);
                             if (long.TryParse(locateArgs1, out var testtrylng2)) locateArgs1 = (testtrylng2 + 1).ToString();
                             else locateArgs1 += "+1";
-                            return $"(locate({left}, {indexOfFindStr}, {locateArgs1})-1)";
+                            return $"(locate({indexOfFindStr}, {left}, {locateArgs1})-1)";
                         }
-                        return $"(locate({left}, {indexOfFindStr})-1)";
+                        return $"(locate({indexOfFindStr}, {left})-1)";
                     case "PadLeft":
                         if (exp.Arguments.Count == 1) return $"lpad({left}, {getExp(exp.Arguments[0])})";
                         return $"lpad({left}, {getExp(exp.Arguments[0])}, {getExp(exp.Arguments[1])})";
diff --git a/Providers/FreeSql.Provider.Odbc/MySql/OdbcMySqlExpression.cs b/Providers/FreeSql.Provider.Odbc/MySql/OdbcMySqlExpression.cs
index 3fdf6e2a..cb2c6bf8 100644
--- a/Providers/FreeSql.Provider.Odbc/MySql/OdbcMySqlExpression.cs
+++ b/Providers/FreeSql.Provider.Odbc/MySql/OdbcMySqlExpression.cs
@@ -278,9 +278,9 @@ namespace FreeSql.Odbc.MySql
                             var locateArgs1 = getExp(exp.Arguments[1]);
                             if (long.TryParse(locateArgs1, out var testtrylng2)) locateArgs1 = (testtrylng2 + 1).ToString();
                             else locateArgs1 += "+1";
-                            return $"(locate({left}, {indexOfFindStr}, {locateArgs1})-1)";
+                            return $"(locate({indexOfFindStr}, {left}, {locateArgs1})-1)";
                         }
-                        return $"(locate({left}, {indexOfFindStr})-1)";
+                        return $"(locate({indexOfFindStr}, {left})-1)";
                     case "PadLeft":
                         if (exp.Arguments.Count == 1) return $"lpad({left}, {getExp(exp.Arguments[0])})";
                         return $"lpad({left}, {getExp(exp.Arguments[0])}, {getExp(exp.Arguments[1])})";