ABSTRACT
The category of five elements had consummated in the Spring and Autumn and the Warring States Periods.The five elements emerged from the observation of the various groups of dynamic processes,functions and characteristics in the natural world.It thoughts that the five elements are mutual united and supplementary.The category of five elements brings a new thinking mode into the theory of TCM,establishes a theory of man,as a microcosm,is connected with the macrocosm which is on the basis of five orientations,five kinds of elements and five organs.It makes integer conception,which regards five viscera as a center and considers human physiological and pathological activities from multiple factors and multiple levels,follow through the TCM theory.