Literary period: the literature of Wei, Jin, Southern and Northern Dynasties refers to a poetic style or style in the Western Jin Dynasty. Taikang (280 ~ 289) is the title of Sima Yan, the emperor of the Western Jin Dynasty. The name "Tai Kang Ti" was first seen in Song Dynasty's Canglang Poetry. Yan said that this is based on Liang Zhongrong's poem, "In Taikang, there are three (Zhang Zai, Zhang Xie,), two land (Lu Ji,), two pan (Pan Yue, Pan Ni), one left (Zuo Si), the revival of Bohr, following the former prince of Wu, and ZTE articles." Zhong Rong's theory is an overview of the poetic style in the early and middle period of the Western Jin Dynasty. Yan Yu clearly refers to the poetic style represented by Zuo Si and Pan Yue in Taikang period, that is, what he called "discrimination is a language". Before and after Taikang, the literary world in the Western Jin Dynasty was relatively prosperous, and many writers had many masterpieces handed down from generation to generation. Taikang's poems are generally represented by Lu Ji and Pan Yue. Their poems pay more attention to the pursuit of artistic forms, pay attention to gorgeous rhetoric and neat antithesis, and are "rich in ideas, rich in prose and beautiful in combination" (Song Lingyun Biography). Although the technique of poetry is more exquisite, it sometimes pursues form too much, and often loses itself in carving and becomes sluggish in brushwork. In a word, the general style of poets in this period is "to adopt its beginning, be softer than Jian 'an, or to analyze its writing as a wonderful thing, or to drift away" (Shi Ming, Carving Dragons with Literary Mind).