This article studies from the origin of warm-and hot-natured herbs on damp-heat diseases，collating the theoretical system of TCM，which is symbolized by The Yellow Emperor’ s Internal Classic and Treatise on Cold-Attack and Miscellaneous Diseases as well as the discourse coming from each later generation of doctors.The utilization of warm-and hot-natured herbs in damp-heat diseases is discussed from aspects of the theoretical basis of the dispersing and eliminating method and its law of prescription.All of these are intended to add more options and provide guidance for clinical medication.