Introduced from Guang xi and Guei Zhou Provinces, in the south of China, a population of Chinese Miniature Pig ( commonly called Fragrant Pigs ) , with a clear genetic background, stable productive performance and uniform growth and development for experiment was developed as a result of full mating, mass and closed breeding.The growth and development pattern, anatomic and histological structures, normal physiological and biochemical indices, feeding and management control and eradication of disease and application in comparative medicine have been extensively studied. The results showed that Chinese Miniature Pigs have the unique characteristics of snall size, stabls genetic performance, high prolificacy, strong adaptability.Some anatomic and histological structures, and normal physiological and biochemical indices of the miniature pig resembled those of human beings. Atherosclerosis was produced pathologically by feeding hyperlipoid ration. The pathological changes of atherosclerosis were similar to those of human beings. The responses of experimental model to prevention with drug were significant. The miniature pigs were used for the study of stomatology. Not only were the changes of dental pulp covered by hydroxy calcium phosphate-iodoform similar to those of humans but also of artificial decayed teeth of the minipigs similar to natural and artificial decayed teeth of humans. Preliminary studies of skin grafting and anaesthesia were also made in the minipigs. It was considered that the minipigs could be used in the studies of biology, comparative medicine and veterinary medicine.