Chinese medicine has a long history, and Chinese medicine surgery is a part of the whole Chinese medicine, in the long history of Chinese medicine, the study of Chinese medicine surgery diseases can be said to have a long history, through the generations of doctors and modern doctors of research and practice, its treatment methods have been perfected, the clinical efficacy is also improving, and has been developed faster, especially in the field of Chinese medicine surgery, the development and improvement of external treatment methods is extremely striking. The development and improvement of the external treatment method in the field of Chinese medicine surgery is extremely striking, and the characteristics and advantages of the external treatment method in treating surgical diseases are more reflected in the surgical clinic. It has become a very important and indispensable treatment method in the treatment of surgical diseases. It has been valued by everyone in the clinic for its unique method, obvious characteristic advantages and precise clinical efficacy, and has made very outstanding achievements. The external treatment method of Chinese medicine includes different treatment methods such as herbal medicine external treatment and surgical debridement. Any sores and swellings that can be dissipated can not only shorten the course of treatment and improve the clinical efficacy, but also reduce the pain of patients and ease their economic burden. The dosage forms of topical Chinese medicine are complicated and diverse, summarized as bulk, ointment, hard paste (cream), paste, water, emulsion, tincture, medicine twist, medicine ingot, fresh plant agent, animal and plant oil agent, vinegar agent, etc. Different dosage forms have different efficacy and characteristics in clinical practice, which will not be elaborated here; the topical treatment methods of topical Chinese medicine commonly used in clinical practice include ointment therapy (called thin paste in ancient times), paste (also known as compress therapy or hoop medicine therapy), mixed medicine therapy, medicine twisting therapy, moxibustion therapy, peri-compress therapy, fumigation therapy (mainly with sweat method, drenching method, fumigation method and hot fomentation method), hot ironing therapy, soaking method, acupuncture point injection and puncture and bloodletting therapy, etc. The therapeutic effects of drugs in external treatment can be summarized as follows: 1. clear heat and detoxify, reduce swelling and pain, and promote internal elimination. 2. dispel wind and cold, warm meridians and channels, and harmonize qi and blood. 3. soften hard knots, disperse blood stasis, and activate blood circulation. 4. sterilize and disinfect, remove pus and promote ulceration and drainage of pus. 5. simmer pus and produce muscle, and promote healing. The external treatment method of Chinese medicine is mainly used in clinical practice for the treatment of surgical infection diseases, chronic ulcers caused by various reasons, anal and intestinal diseases, skin diseases, peripheral vascular diseases and postoperative treatment and common postoperative complications. The following principles should be followed in the treatment process: 1. on the basis of dialectical treatment, the internal treatment method of TCM is combined with the external treatment method of TCM. 2. traditional external treatment method of TCM is combined with modern medical surgical treatment. 3. local dialectical evidence is combined with systemic dialectical evidence, and external treatment method is mainly based on local dialectical evidence. 4. modern medical diagnosis is combined with dialectical evidence of TCM, i.e. Western medical dialectical disease is combined with dialectical evidence of TCM. 5. 5, the combination of a variety of external treatment methods (such as the combination of ointment therapy and plaster therapy, doping therapy and plaster therapy, combination of plaster therapy and local cleansing, fumigation method and plaster therapy, medicine twist therapy and plaster therapy, simmering pus and muscle method and local cleansing, etc.). In short, in the treatment process, we must clarify the site, cause and nature of the lesion, fully understand the occurrence and development of the disease process, so that the traditional Chinese medicine external therapy is more scientific and true to the right, a variety of treatment methods synergistic, to improve the overall clinical efficacy.