The crushing process plays a vital role in the feed processing process,which not only has a direct impact on the production cost of the feed enterprise,but also has an important impact on the feed quality,ani-mal performance and meat quality.In this paper,the research progress of grinding technology and the influence of grinding on feed quality and feeding effects were reviewed in order to provide some reference for the optimi-zation of grinding technology and the development of feed industry.[Chinese Journal of Animal Nutrition,2024,36(6):3534-3542]