The invention discloses a formula feed for the pig fattening period.The formula feed is prepared from, by weight, 40-50 parts of fermented corn germ meal, 20-30 parts of rice bran, 15-20 parts of drydistiller's grains, 10-15 parts of rapeseed cake, 10-15 parts of bean cake, 12-16 parts of a Chinese herbal medicine preparation, 5-8 parts of fish meal, 4-6parts of meat and bone meal, 7-10 parts ofcorn oil, 1-2 parts of salt, 1-2 parts of green tea powder, 0.8-1.2 parts of fermented polysaccharides and a trace amount of additives.The invention further disclosesa preparation method of the formula feed for the pig fattening period.Accordingly, the fermented corn germ meal serves as the main feed material, the fermented corn germ meal has the functions of achieving digestion and absorption easily and promoting growth, the surface of the feed is wrapped with a layer of Chinese herbal medicine preparation,the obtained feed has the effects of achieving the anti-bacterial property, diminishinginflammation, enhancing immunity, maintaining the balance of gastrointestinal microflora and the like, the nutritional requirements of fattening pigs in the growth period can be fully met, the fattening pigs can grow rapidly, the meat quality is obviously improved, and the disease resistance is high.