The Treatise on Febrile Diseases is the earliest traditional Chinese medicine clinical classic which has a complete system in our country, the way of thinking of syndrome differentiation in the book is flexible, plain and rigorous, and clinical practiceits had proved its effectiveness and correctness. Because of its unique and complete system of treatment based on syndrome differentiation and high-efficiency prescription, it is known as the TCM clinical standard. In this paper, the abundant and scientific thinking method of Treatise on Febrile Diseases was discussed preliminarily, in order to ...