The writing style of the Wei and Jin Dynasties had its unique characteristics, mainly in poetry, prose and literary criticism. In terms of poetry, there were various styles of poetry in the Wei and Jin Dynasties. There was the bold and unconstrained style of the Book of Songs, the delicate and gentle style of the Songs of Chu, and the Nineteen Ancient Poems that combined the northern and southern styles. In terms of language, the poems of the Wei and Jin Dynasties used a large number of rhetorical devices such as metaphor, symbolism, antithesis, etc., which made the poems more vivid, vivid and infectious. In terms of prose, the style of writing in the Wei and Jin Dynasties focused on expressing personal thoughts and emotions. Some prose works with personality and depth of thought appeared, such as Cao Zijian's "Peach Blossom Spring", Tao Yuanming's "Peach Blossom Spring Poetry", Xie Lingyun's "You Bao Chan Shan Ji" and so on. These prose works not only express the author's perception of nature and life, but also show the author's unique artistic style and depth of thought. In terms of literary criticism, the style of writing in the Wei and Jin Dynasties emphasized the artistic nature and ideology of literature, criticizing some bad literary phenomena such as literati excessively pursuing gorgeous writing and formal beauty while ignoring the value and ideology of the content. These literary criticism works not only reflected some of the views and thoughts of the literary world at that time, but also had a profound impact on the development of literature in later generations. The writing style of the Wei and Jin Dynasties had a unique artistic style and depth of thought, which was mainly manifested in poetry, prose and literary criticism.