In 1987, Wang ed from Guangxi University (the former Guangxi Agricultural College) and other scholars introduced them from Bama County, Guangxi Province to the animal husbandry experimental station of the former Guangxi Agricultural College, and adopted the closed pure breeding inbreeding method to select small pigs for experiment. The company introduced pure line population from Guangxi Bama miniature pig conservation center, through purification, breeding and breeding to produce ordinary experimental animal miniature pigs that meet the quality standards of experimental animals and have a clear genetic background.