To Introduce the basic theory about traditional Chinese medicine, Analysis the Relations among four nature of drugs, five flavours,lifting, lowering, floating and sinking, channel entry, poisonous and asepsis. Put forward the " Five flavours" as the core of the basic theory about Traditional Chinese medicine. And to raise the the preliminary thinking and methods of research about it ,Hope to make use of modem research tools to explore the scientific connotation of five flayours, and use it as a breakthrough construction abou...