The invention provides a feed for a four-month-old piglet. The feed comprises 590 to 610 parts of corn, 200 to 250 parts of a bean cake, 8 to 12 parts of stone flour, 1 to 5 parts of hydrogen-calcium, 1 to 5 parts of salt, 40 to 60 parts of fish meal, 80 to 120 parts of dry milk extract powder and 8 to 12 parts of an additive. The feed for the four-month-old piglet has the following technical effect: the feed has abundant nutrients, which is beneficial for satisfying growth needs of the four-month-old piglet.