Abstract:An Lushan Rebellion is not only the boundary of glorious age of Tang and mid-Tang dynasty, but also that of poems. The poems in mid-Tang dynasty are totally different from those in glorious age of Tang .At first, represented by the style of Dali period of transition, then along with the rise of reform ideas which called for resurgence, poetry also found its new direction. Therefore, Han Meng Poem School which characterized with “strange”and Yuan Bai Poem School which sought for“real”sprung up. The birth of these two groups has their own cultural reasons. Through another perspective of culture, costumes, in the tang dynasty, setting the characteristics in Mid Tang dynasty as a starting point so as to analyze the cultural reason why the two schools, the representatives of another kind of culture in Mid Tang era, are able to develop as well as become thriving. Thus the paper enables us to have a better understanding of them, and then get to know the characteristics and aesthetic temperament and interest of this particular era.