Wang Shuhe in the Western Jin Dynasty compiled Pulse Classic, which established the method of pulse diagnosis in traditional Chinese medicine. In clinical practice, doctors in past dynasties have continuously inherited and improved the diagnostic methods of traditional Chinese medicine, and formed a large number of ancient books on diagnostic methods, such as The Theory of Three Causes and One Disease Syndrome in Song Dynasty, The Golden Mirror Record of Aoshi Typhoid in Ming Dynasty, Guanjing in Qing Dynasty and so on. There are nearly 100 kinds of accumulated diagnostic works.