The invention discloses feed for a pregnant sow. The feed is characterized by being prepared from raw materials in parts by weight as follows: 120 parts of corn residues, 90 parts of bean dregs, 90 parts of wheat bran, 65 parts of sorghum flour, 25 parts of vegetable residues, 13 parts of Chinese yam, 13 parts of sesame, 18 parts of shiitake mushrooms, 7 parts of hair weeds, 13 parts of fructus lycii, 8 parts of fructus crataegi, 8 parts of cornus officinalis, 12 parts of Chinese dates, 6 parts of angelica sinensis, 3 parts of malic acid, 18 parts of plant oil, 2 parts of liver powder, 2 parts of calcium hydrophosphate, 1 part of yeast, 1 part of cellulomonas, 3 parts of fine sugar and a proper amount of table salt through mixing. The sow fed on the feed gains weight rapidly, does not get sick, is full of vigor, active in foraging and has glowing skin, and the weight of the sow can increase by 46% or above than that of sows fed on conventional feed. Piglets delivered by the sow fed on the feed is about 2 liang heavier than those delivered by the sows fed on conventional feed, have no abnormalities and have no dead fetus, and the feed is suitable for popularization.