Processing of traditional Chinese medicine refers to the traditional method and technology of processing Chinese herbal medicines into Chinese herbal pieces under the guidance of the theory of traditional Chinese medicine and according to the requirements of traditional Chinese medicine. In ancient times, it was also called "baking", "repairing things" and "repairing therapy". After processing, the drug can not only improve the curative effect, reduce the side effects of the drug, but also facilitate storage, which is an essential process for clinical use of traditional Chinese medicine. For thousands of years, it has not only accumulated rich processing methods and technologies, but also formed a set of traditional processing tools. Processing is the concentrated embodiment and core of traditional Chinese medicine pharmaceutical technology. "Pieces are used as medicine, raw and cooked are treated differently" is a distinctive feature and a big advantage of traditional Chinese medicine. The processing technology of Chinese herbal pieces is unique to China, the crystallization of thousands of years of traditional culture in China and the treasure of Chinese culture. Traditional Chinese medicine processing has a long history. According to legend, it originated from the Shennong era, and the processing of traditional Chinese medicine has been described in detail in Shennong's Herbal Classic in Han Dynasty and Tao Hongjing's Annotation of Herbal Classic in Liang Dynasty. Zhang Zhongjing's Treatise on Febrile Diseases in the Eastern Han Dynasty recorded the processing of 100 kinds of drugs. During the Southern and Northern Dynasties, Lei Gong's monograph "On the Processing of Lei Gong" recorded the processing methods and techniques of 300 kinds of drugs. The newly revised Materia Medica in Tang Dynasty is the first national pharmacopoeia in China, which indicates the processing method of drugs and is the beginning of the government's protection of processing technology. In the Ming Dynasty, Li Shizhen's Compendium of Materia Medica had special processing items, and Miao Xiyong's Canning and Storing Dafa summarized 17 processing methods of traditional Chinese medicine. In Qing Dynasty, Lei's Guide to Repairing Things recorded 232 processing methods in detail. At present, there are only nearly 100 people specializing in processing in China. The processing technology of traditional Chinese medicine is in an endangered state. Because the "modern" medication tends to be routine, the traditional "one prescription, one method" medication mode no longer exists, and many special and traditional processing techniques that can produce special effects are gradually forgotten.