The famous Chinese medicine formula-Zuojin Wan and similar formulae (Zuojin Wan, Ganlu San, Zhuyu Wan and Fanzuojin Wan), composed of Coptis and Evodia in different compatibility proportions, have totally differences not only in therapeutic features, but also obvious in their Cold and Hot natural properties. It has always been the hot and difficult spots in the study of Cold and Hot natural properties in Traditional Chinese Medicine. At present, the Cold and Hot natural properties shown by Chinese medicinal...