Title of health paper. Three Kingdoms Ji Kangzuo. This article is a famous health preserving work in early ancient China. This paper discusses the necessity and importance of health preservation, and advocates that physical and mental cultivation is particularly important; It is proposed that health care should be based on micro-knowledge, so as to prevent micro-duration and nip in the bud; It is required that health preservation should be lasting and reasonable, and some specific health preservation ways are put forward. The article is thorough and full of literary talent. There are books such as San Ji in Jizhong and Selected Works of Zhao Wenming.