Most of Dian Lun was later lost, and only three articles were left: Self-report, Thesis and On Fang Shu. Among them, the paper was completely preserved because it was selected in Selected Works of Zhaoming.

Dian Lun Wen is a very important literary work, which is of epoch-making significance in the history of China ancient literary theory.

Dian Lun Wen is the first monograph in the history of China's literary criticism. Wen is an article in a broad sense, including literary works. It involves several very important issues in literary criticism and occupies an important position in the history of literary criticism.

Cao Pi put forward four points in Dian Lun Wen: First, literature has important functions; Second, the writer's personality is related to the style of his works; Third, different styles have different characteristics and standards; Fourth, literary criticism should have a correct attitude.

Cao Pi opposed the habit of "scholars despise each other" since ancient times. With the attitude of "judging yourself and others", he pointed out the advantages and disadvantages of "Jian 'an seven sons" in various article creation. Why do these writers have their own strengths? Cao Pi also made a further discussion.

Cao Pi believes that the writer's unique personality is of decisive significance to the style of his works, which is manifested in different natural endowments and temperament in literary works, and embodies the spirit of the times of "human consciousness" and "literary consciousness" in Wei and Jin Dynasties.