Wu Jutong, given name Tang (1757-1841), ranks with Zhang Zhongjing in Han Dynasty as Two Pillars in the medical history of China. His “Detailed Differentiation of Warm disease” which is another classic work in trad. Chinese medical history put forward the principle of diagnosing warm diseases systematically and scientifically. The book is praised and thought highly by critics and medical scientists. “Detailed Differentiation of Warm Disease”, “Huangdi Inner Body Channels”, “Treatise on Febrile Disease”, and “Medical Treatures of the Golden Chamber” are called the Four Classics of Trad. Chinese medicine.