The phrase “Daijishangzhou, Wenshengqizhi” (referring to the literature of the Shang and Zhou dynasties, its elegance is comparable to its plainness) in Wenxin Diaolong - Yuan Dao, expresses an important point of view on Shang and Zhou literature, the interpretation of which cannot be ignored. Scholars have mostly focused on the question of whether the word “sheng” should be interpreted as “more than” or “comparable to”, paying little attention to the interpretation of the word “qi”, which should refer to “the literature of Shang and Zhou” instead of “Tang and Yu” or “Shang and Zhou”. At the same time, the perfection of the literature of the Shang and Zhou dynasties can be seen in the chapters of Zongjing and Tongchang. The evaluation of the literature of the Shang and Zhou dynasties is one of the important views of Liu Xie’s theses, which is in line with Liu Xie’s idea that both elegance and plainness matter. Therefore, the word “sheng” should be interpreted as “comparable to”.