As the best-selling Peking Opera anthology during the Republic of China, "Xi Kao" has important academic value. However, there are omissions in the publication of authors, editions, and compilation styles of "Xi Kao" in the historical books of Peking opera. Based on newly discovered new documents, this article adds a new version of "Xi Kao" , verifies the authors of "Xi Kao"'s real names of "Jian'er" and "Da Cuo", and points out the compilation style of the various types of Peking Opera "Xi Kao " imitated the Shen Bao's "Xi Kao" and the Shi Zhong Shu Ju's "Xi Kao Xin Bian".