Abstract: It is believed that Treatise on Febrile Diseases contains not only qualitative descriptions of diseases and treatments， but also a quantitative description. This idea runs through all aspects of the syndrome differentiation and treatment system for typhoid fever， specifically including treatment principles and methods， prescription and medication， nursing， etc. This quantitative thinking is of great guiding significance to today's scientific research and clinical practice of TCM， which will help to build a distinctive quantitative thinking system， promote quantitative modern research， improve the level of clinical syndrome differentiation and treatment， and realize accurate treatment of TCM.