Treatise Yin-Yang is based on Chun-chu-shi-dae and composed in Jen-guk-shi-dae and the systemic constant is effected at the age of Han-dae. This study needs the deep philosophic understanding and principal. In conclusion, the parting and meeting of Yin-Yang is conducted by the parting and meeting of Three-yin-three-yang. In addition, this theory is based on the Taoism. Yin-Yang is embodied by Sky-Ground-Sun-Moon, had the meaning of time and place and accomplished their own rules with identification as one. Taechung and Gwangmyeng are the concretely applied form of the parting and meeting of Yin-Yang at human body. The parting and Meeting of Three-Yin- Three-Yang has six types symbols of circulated Yin-Yang. They have Six-meeting space structure as match like up-down, backside and front-side, left-side and right-side. These pairs express symbolized meaning of creation of Saeng-jang-shu-chang and also apply the same things.