The demarcation of poetry within the Tang and Sung Dynasty begins in Southern Sung Dynasty, and the reconciliation has arisen in middle period of Qing dynasty. Suei Yuan Shih Hua (隨園詩話) written by Yuan Mei is one of representatives in that time. Cian Jhong Shu (錢鍾書) once mentions that Suei Yuan Shih Hua is against the demarcation of poetry within the Tang and Sung Dynasty. Indeed, it is vital to find out how Yuan Mei tries to reconcile the debate of poetry, and also to research the reason behind the manner. In order to have a better understanding of Yuan Mei’s ideas, I not only research Suei Yuan Shih Hua, but also include his literary works like poetry, prose and letter, and hope to have a whole vision of his ideas about the reconciliation of the demarcation of poetry within the Tang and Sung Dynasty.