The four famous doctors in Jin Yong's martial arts novels were Bian Que, Hua Tuo, Zhang Zhongjing, and Li Shizhen. Bian Que was a doctor from the Qin Kingdom, known as the interpreter of the Yellow Emperor's Internal Classic, and also a medical master from the Spring and Autumn Period. He put forward the idea of "the disease is born in the body and treated externally", which advocated that the treatment of diseases should first understand the cause of the disease and then adopt corresponding treatment methods. Hua Tuo was a famous doctor in the Eastern Han Dynasty. He was proficient in surgery and internal medicine. He had once cut Cao Cao's pulse and treated many headaches, fevers and other diseases. He had also invented Mafeisan to treat severe headaches and cervical vertebrae. Zhang Zhongjing was a famous doctor during the Three Kingdoms period. He was the author of " On Typhoid and Various Disease ", which was one of the important documents in the history of ancient Chinese medicine. He believed that diseases were caused by improper diet and irregular daily life. He advocated the prevention and treatment of diseases by adjusting diet and living habits. Li Shizhen was a famous doctor in the Ming Dynasty. He was the author of the Compendium of Materia Medica, a medical work that recorded a large number of Chinese medicine prescriptions. He believed that the key to the efficacy of Chinese medicine was the quality of the medicine and the method of use. He advocated choosing the appropriate medicine according to the different effects of the prescription. It could be seen that these famous doctors were quite outstanding. They had in-depth research and unique insights into the treatment of diseases. However, a real martial arts master was not necessarily a top doctor because martial arts masters usually paid more attention to individual martial arts and skills than medical knowledge.