Traditional Chinese medicine comes from plants, animals and minerals in nature. There are 12,807 kinds of traditional medicinal resources in my country, but the clinical application and preparation of traditional Chinese medicine generally do not use raw medicine, but use processed mature products, namely decoction pieces. Traditional Chinese medicine processing is a special technology for processing raw medicine according to the theory of traditional Chinese medicine and different requirements of medical treatment, adjustment, storage and the nature of the medicinal materials themselves, using methods such as repair, water processing, fire processing and adding auxiliary materials. It can be traced back to the planting, collection or breeding of medicinal materials. Among them, stir-frying, roasting, scalding, calcining, stewing and fire processing are the most commonly used, hence the name "processing". The purpose of traditional Chinese medicine processing is to reduce or eliminate the toxicity and side effects of the drug, alleviate or change the medicinal properties, thereby improving the efficacy, facilitating adjustment, storage and taking. Its core is to reduce toxicity and increase efficacy. From ancient times to the present, the traditional Chinese medicine industry has accumulated a lot of experience in traditional Chinese medicine processing, summarized a set of theories, invented many technologies, formed many schools, and compiled a large number of works. Traditional Chinese medicine processing technology has become one of the important contents of traditional Chinese medicine. Sichuan is known as the "Land of Abundance" and the "Hometown of Traditional Chinese Medicine and the Storehouse of Chinese Medicine". There are more than 5,000 kinds of Chinese medicine resources in Sichuan, accounting for about 75% of the total Chinese herbal medicine varieties, including more than 30 kinds of famous local medicinal materials and main production medicinal materials. The application of traditional Chinese medicine and Chinese patent medicine is the main means for Sichuan people to prevent and treat diseases. The processing of Chinese medicine is a pharmaceutical technology adopted according to the theory of traditional Chinese medicine, the needs of diagnosing and treating medicines, the properties of the medicines themselves, and the different requirements of adjustment and preparation. It is a major feature of traditional Chinese medicine. There are many processing methods, such as steaming, frying, roasting, calcining, roasting, refining, boiling, simmering, chopping, grinding, filing, pounding, washing with wine, decocting with wine, boiling with wine, soaking in water, washing with soup, scraping, removing the core, removing the wings and feet, and removing the hair. Chinese medicine processing plays a very important role in the theory and application of traditional Chinese medicine. First, it can improve the effect of clinical medical treatment. That is, doctors can choose appropriate processing products according to different causes, pathogenesis, symptoms and the physical health status of patients to enhance the accuracy, reliability and practical efficacy of prescriptions. Second, Chinese medicine processing can fully guarantee the safety of clinical medication, reduce or eliminate the toxic side effects of drugs, and thus ensure the safety of patients' lives. After the reform and opening up, the country vigorously promoted the development of Chinese medicine, abolished the use of drugs and avoided varieties with high technical difficulties. Many unique Chinese medicine preparation technologies in Chengdu were gradually eliminated. At the same time, most of the old generation of technicians who mastered the prescriptions, preparation methods and equipment of such preparations have passed away, and those who are still alive are also old. The Chinese medicine processing skills are in urgent need of rescue and protection.