The invention relates to pig feed. The pig feed is prepared from, by weight, 40-65 parts of corn, 22-30 parts of wheat bran, 8-15 parts of green hay, 10-18 parts of fish meal, 5-12 parts of tea powder, 5-9 parts of poplar leaves, 3-7 parts of rare earth, 5-10 parts of silkworm excrement, 5-10 parts of pine needle meal, 0.5-1.2 parts of salt, 2-5 parts of lemon powder, 1-2 parts of calcium gluconate, 0.2-0.7 part of calcium hydrophosphate, 0.2-0.5 part of pepsase, 1.5-4 parts of Chinese herbal medicine extracts, 0.5-1.2 parts of multivitamins, wherein the Chinese herbal medicine extracts comprise, by weight, 12-20 parts of smoked plum, 20-25 parts of Chinese yam, 12-18 parts of licorice roots, 5-10 parts of dried tangerine or orange peel, 8-15 parts of the stems of noble dendrobium, 20-25 parts of poria cocos and 8-15 parts of hawthorn fruits. The pig feed is comprehensive in nutrition, environmentally friendly, safe, and capable of promoting ingestion of living pigs, improving the conversion rate and promoting fattening.