The Traditional Chinese Acupuncture is mainly based on a structure of three interrelated theories, Jing Luo (The system of channels/Meridians and collaterals), The Eight principles, and the Zang-Fu organs theory. The importance of Eight principles is now beginning to be understood. The identiication and differentiation of syndromes according to the eight principles is one of the earliest examples of critical and deductive thinking for diagnosis. It is a core concepts of Confucian based traditional Chinese medical.