The invention provides a pig feed and a processing method thereof and belongs to the technical field of feed formulations and processing. The pig feed is made from soybean meal, wheat bran, cotton seed hull, fish bone meal, a traditional Chinese medicine additive, trace mixture and a probiotic liquid, wherein the traditional Chinese medicine additive is made from Radix Notoginseng, Rhizoma Corydalis, Fructus Crataegi, Cortex Eucommiae, Herba Ephedrae, Ramulus Cinnamomi, Folium Mori and Semen Cassiae; the pig feed is made mainly by fermenting soybean meal, wheat bran and cotton seed hull with probiotics, drying and grinding, and mixing with the traditional Chinese medicine additive, the fish bone meal and trace mixture; through the organic combination of coarse proteins, trace elements, vitamins, probiotics and traditional Chinese medicine, the pig feed can effectively regulate pig intestines and stomach, promote the absorption of nutrients, improve pig immunity, regulate physiology of a pig, regulate the blood glucose and lipid through the blood in the body of the pig, improve myocardial blood oxygen supply and blood perfusion, increase the consumption of fat, reduce the ratio of lean and fat and promote the increase of lean growth rate.