Book of Poetry is the first poetry collection in Chinese culture, beginning in 1122 B.C ending up in the middle of Zhou, about three thousand years ago. There are 305 articles in Book of Poetry categorizing by its content into Guo Feng, Ya, Song. It has been argued for a long time whether it is a literature of populace or a literature of aristocracy. People before the birth of conficiousism considered it to be the reading material of noble men, it could be found out from the Zhuan written by Mao, Preface of Book of Poetry, and Jian (Explanation of Book of Poetry) written by Zhen Qiao. However, after Zhu Xi came up with the idea of the folk song, scholars had begun to take Book of Poetry as a literature of populace. Furthermore, most modern scholars also take it for granted that which is a populace literature and seldom question for it. At the very beginning of Republic of China, professor Tung-ren Zhu wrote “Whether Guo Feng is out of Populace” having different perspective from Zhu Xi. Recently, Guo-liang Yeh proposed “The aristocracy of Book of Poetry” which turned over the argument of populace literature and led to the same conclusion that Book of Poetry is a literature of aristocracy. Resulting from the different perspectives and verification methods, Tung-ren Zhu wrote in a conservative way and with complete argument. Contrarily, Guo-liang Yeh inducted that there are articles depicting the dressings and activities in aristocratic life so he came to the conclusion of Guo Feng is a piece of aristocratic literature. Whether Book of Poetry is a literature of aristocracy is an issue worthy of discussion. Here we mainly analyze and compare the difference betweeen Tung-ren Zhu and Guo-liang Yeh's argument in order to reach a conclusion which is close to the real situation. Stopping quarreling whether it is aristocratic or not and have a broader way to read Book of Poetry.