The invention discloses a medium broiler chicken feed. The medium feed consists of corn, dehulled soybean meal, cottonseed meal, full-fat rice bran, corn protein powder, sprouting corn bran, lard, flour, stone powder, calcium hydrogen phosphate, fermentation cottonseed protein, lysine, sodium chloride, a composite trace element premix, methionine, tryptophan, threonine, sodium humate, choline chloride, narasin, mannopeptimycins, complex vitamins, an ethoxyquin antioxidant, granular phytase, enramycin, VC ester and vitamin E acetate. According to the feed, intestinal tract flora can be maintained balanced, the immunity of broilers can be improved, the utilization rate of the feed is increased, and the growth rate of the broilers can be increased. According to a preparation method disclosedby the invention, more nutrient components of the feed raw materials can be reserved, and the nutrient value of the feed can be increased.