The invention belongs to the field of feed and in particular relates to a pig feed for the latter fattening period. The pig feed disclosed by the invention comprises corn flour, distillers' grains of Baijiu, wheat bran, soybean meal, peanut meal, peanut vine meal, sesame seed meal, rapeseed dregs, palm meal, rice bran, sweet potatoes, potatoes, sweet potato vine meal, brown seaweed, a complex enzyme preparation, a complex-probiotic agent, citric acid, sodium carboxymethyl cellulose, edible salt, fishbone dust, shell powder, calcium carbonate, lysine, methionine, ginger powder, premix, soybean dietary fiber flour, green feed and chitosan. The feed formula disclosed by the invention has the innovation that the green feed is added, so that the absorption and digestion ability of pigs in the latter fattening period is improved, the growth speed of the pigs is improved, and the disease resistance of the pigs in the latter fattening period is improved. In addition, a variety of feeds which are difficult to digest and absorb are fermented and transformed into components which are easy to digest and absorb, and the growth of the pigs in the latter fattening period is facilitated.