Yi medicine is the summary of the experience and wisdom of the Yi people in their long-term struggle against diseases, and is an important part of the great treasure house of Chinese medicine. There are thousands of Yi medicines, including animal medicines, mineral medicines, and plant medicines, among which plant medicines and animal medicines are more widely used. The use of animal medicines in Yi medicine originated from the ancestors of the Yi people in the primitive society. Ancient Yi texts record 59 types of diseases, 231 types of Yi medicines, and 226 single prescriptions and proven prescriptions. "The types and effects of animal medicines were already recorded in ancient Yi medical books at the end of the 10th century; the Shuangbai Yi Medical Book in the middle of the 16th century included 92 kinds of animal medicines, accounting for 1/3 of the medicines in the book. The Qisu Book, which was completed in the 45th year of Jiajing in the Ming Dynasty (1566 AD), was 12 years earlier than Li Shizhen's Compendium of Materia Medica. It is a summary of the medical experience of the Yi people before the 16th century. The proportion of animal medicines recorded in the Yi Medicine Offering Classics in the early Qing Dynasty was even greater, accounting for 928%; it can be seen that the Yi people use animal medicines more frequently. Since 1978, Yunnan, Sichuan and other places have conducted surveys on Yi herbal medicines. Chuxiong Yi Autonomous Prefecture in Yunnan has sorted out 102 kinds, Eshan County has sorted out 23 kinds, and Liangshan Yi Autonomous Prefecture has sorted out 105 kinds and compiled the monograph "Yi Medical Herbal Medicines". The Yunnan Provincial Drug Standards include 8 kinds of Yi medicine, among the ethnic medicines recorded in the "Chinese Ethnology Pharmacopoeia", there are about 15 kinds of Yi medicine names and medicinal experience. Yi medical botanical medicines are mostly fresh products. In some settlements (such as Liangshan), there is no accurate dosage, and single medicines are used more often. Common uses include mashing, kneading, external application, chewing, boiling water for internal use, and stewing chicken for consumption. The ancestors of the Yi people invented salt-making technology very early. The use of salt has had a significant impact on the lives of the Yi people and Yi medicine. They use salt water to clean wounds and feed livestock. In addition, the Yi people have a long history of using wine in medicine. As early as 43 AD (the 19th year of Emperor Guangwu's Jianwu reign), the "Qiong people", one of the ancestors of the Yi people living in the Liangshan area, could brew poisonous wine and use it in wars. In daily life, the Yi people have been hospitable and fond of wine since ancient times. Wine has become an indispensable drink in the lives of the Yi people. Materials. Yunnan Yi medicine has a history of more than a thousand years. The "Yi Medical Book of the Ming Dynasty" written in the 45th year of Jiajing in the Ming Dynasty (1566) and discovered in Chuxiong Yi Autonomous Prefecture in 1979 is the earliest existing monograph on Yi medicine. Yi medicine uses the theories of two qi (clear qi and turbid qi), five internal organs (heart, liver, spleen, lungs, and kidneys), five bodies (blood, bones, heart, tendons, and flesh) and five elements (water, gold, fire, wood, and earth) to explain the physiological and pathological phenomena of the human body. Yi medicine has two methods of treating diseases: internal treatment and external treatment. Internal treatment methods often take compound preparations; external treatment methods include compresses, fumigations, external washings, incisions, bloodletting, massage, cupping and other drugs and non-drug therapies. Yi medicine is good at treating injuries from falls, and powders, tinctures and wine are the most commonly used. There are about 1,189 commonly used medicines, including 871 herbal medicines, 262 animal medicines, and 56 mineral and other medicines. Yunnan Province has translated and compiled and published The monographs on Yi medicine include "Yi Medicine Records", "Yi Medicine in the Yuan Dynasty", "Yi Medicine", "Shuailao Mountain Yi Medicine", "Shuailao Materia Medica", etc. "Yunnan Provincial Drug Standards" has collected 7 Yi medical prescriptions and 11 kinds of medicinal materials. The world-renowned "Yunnan Baiyao", the effective "artemisinin A", "Kunming Mountain Begonia", "Dengzhanhua", and the "Yangwei Jiedu Capsules", "Lidan Jiedu Capsules", "Zhixie Capsules", and "Cervical Vertebrae Capsules" developed by Chuxiong Yi Autonomous Prefecture Hospital of Traditional Chinese Medicine; "Yi Xinkang Capsules" and "Guoyi Kechuan Granules" produced by Longfa Pharmaceutical; "Yan Shuxin", "Jingqishen Medicinal Wine", and "Compound Crane Enteritis Capsules" produced by Dayao Jinbi Pharmaceutical Factory; "Yi Zhixue" and "Yi Zhitong" developed by Yao'an County Hospital; "Six Two Six Drug Rehabilitation Capsules" developed by Kunming City Compulsory Drug Rehabilitation Center, etc. are all treasures of Yi medicine.