The invention discloses feed for a layer. The feed is prepared from, by weight, corn, soybean meal, rapeseed dregs, wheat husks, cotton seeds, mulberry roots, madder, calcium hydrophosphate, choline chloride and salt. According to the feed, the appetite of the layer can be promoted, meanwhile, the stomach and intestine environment of the layer can be improved, digestion and absorption of the layer on nutrient elements in the feed can be promoted, the laying rate can be increased, and the amount of the adopted feed is low. The feed for the layer has the nutritive and medical functions, the immunity of an organism is improved, diseases are reduced in the feeding process, use of drugs is reduced, and safe and reliable animal by-products are produced. The occurrence rate of the respiratory disease of the layer can be lowered in the feeding process. The conversion ratio of the feed is increased, so that the concentration of ammonia in excrement is lowered. The commodity characteristic is improved, the abdominal fat percentage is lowered, and chicken quality is improved. The feed can be saved, the quantity of the drugs can be reduced, and the feeding cost can be lowered.