This study analyzes a medicine and iching-study(易學) and vital meaning through a medical science ruler called ZhangNan(章楠) of Qing-Dynasty(淸代), but has a purpose. First of all, the writer judges that the ZhangNan's medicine did not get out of a tradition of a Rui-Yi(儒醫, Confucian medicine) medicine greatly. He considered philosophy character of Rui-Yi formed after Jin-Yuan Dynasty(金元代) a purpose of own medicine. A way he kept the human life in order to realize a large meaning of Confucianism, and to stop a disease was necessary and spoke necessity of a medicine for this. Though a medicine is small, but becomes necessary thing in order to realize Confucianism whether a medicine and Confucianism are the only each other. The ZhangNan presented Zhi-zhong-he(致中和) with a way as soon as it is a purpose of a medicine, but ZhangNan is opening the point that Xing(性) was given 'Taiji(太極)' to. If Neo-Confucianism named, 'Taiji(太極)-xing(性)-li(理)' is general, but ZhangNan is introducing the Taiji with Chi(氣). ZhangNan introduces the Taiji(太極) with one Chi(氣) and is reading thing with another Zhu-zai(主宰) except Taiji, but cannot but recognize this with one in characteristics of a medicine ruler. A disregard is the inferior results, and this can do entrance of the Huang-di-nei-jing(黃帝內經) which put a base with Han-Dynasty(漢代) iching-study(易學) and this too. It is made concrete 'Zangfu(藏府)-Taiji', and he is considering 'Dan-tian(丹田)-Taiji' in a discussion about the Great Absolute to be physical too more. Also, Taiji' is describing a point of contact that a spirit and the body meet with.