Abstract: From"becoming the new changes"Taishi poetry to the"Renaissance"of the Taikang,Yuan Kang poetry,and finally to "change Innovation Style"Yongjia poetry,Western Jin Dynasty poetry has separated itself from the tumult of an Style literature and Zhengshi think of fashion,to deliberately pursue the development of forms and skills of formalism fashion,forming a"star adorned aims thick,red tape Yee Hop,"the literary characteristics.And from Jianan poetry and Zhengshi poetry,to the Southern Jin Dynasty,it can be described as"Beginning from Zhenshi,gentle force in Jianan",which had created a fashion forward in the history of poetry of the Middle Ages.