2. Content: With the increase of people's demand for sheep products and the development of large-scale sheep raising, the vast number of sheep farms and sheep farmers need to understand the updated and more practical sheep raising technology and effective ways to obtain sheep raising benefits. Therefore, we organized sheep experts to revise the book, deleted the contents with poor applicability and outdated information, and added new varieties and technologies. Such as Boer goat, Nanjiang yellow sheep, Dorset sheep, Suffolk sheep and other new breeds, the feeding and introduction technology of small-tailed Han sheep, the feeding and management technology of pure Boer goat and Boer goat hybrid sheep, the prevention and control norms of infectious and parasitic diseases, the health care and treatment of sheep raising in agricultural areas, the introduction of several high-yield forage varieties, the artificial insemination of sheep and the estrus identification technology of ewes, how to calculate the cost of raising sheep, several methods to deal with drastic market changes, and sheep raising and industrialization areas.