The purpose of the present invention is to provide an oil and fat composition having excellent milk feeling or milk flavor and a method for manufacturing the same. An oil and fat composition which contains 50% by mass to 100% by mass of milk fat and has a pentanal/ hexanal ration by mol, based on volatile components at 180°C, of 0.15 to 0.70. A method for manufacturing an oil and fat composition, said method comprising a step for heating a starting oil and fat composition, which contains 50% by mass to 100% by mass of milk fat, while supplying oxygen to give an oxidized oil and fat composition which has a pentanal/ hexanal ratio by mol, based on volatile components at 180° C, of 0.15 to 0.70.