Is one of the "Three Caos" in Dian Lun, Wei Wendi Cao Pi? Paper ". Cao Pi (187-226), born in Pei Guoyu County (now Bozhou, Anhui Province), the eldest son of Cao Cao and Mrs. Bian, was the founding emperor of Cao Wei Empire. His canon? Thesis is the first literary monograph in the history of China's ancient literary criticism. This paper expounds the problems of literary criticism through comments on writers and argumentative essays, and holds that literary criticism needs to judge others; This paper expounds the essence of literature, clearly puts forward the theory of literary spirit, and emphasizes that literary creation is the externalized form of a writer's life endowment, temperament and talent. This paper expounds the value of literature and affirms articles (including poems, poems, essays, practical articles, etc.). ) are "great and immortal events in governing the country", that is, articles are great and immortal undertakings in governing the country and even have a more important position than "moral integrity" and "meritorious service". The value of this kind of article is that he has made a great breakthrough in the thought that traditional articles ("making statements") are "moral integrity" and "meritorious service", broke through the previous view of belittling literature and pointed out the important position of literature. It is a manifestation of literary consciousness and has great significance and influence on the development of literary creation and literary theoretical criticism.