There are 130 writers in 30 volumes of Selected Works, from the author of Preface to Qu Yuan. Up to that time, only no strangers were recorded. Among the writers included in the book, Lu Shu died in the seventh year of his life (526) and Xiao Tong died in the third year of Zhongtong (53 1), so the compilation of Selected Works should be a few years after the seventh year of his life. This book contains 5 14 questions. The standard of arrangement is "each sub-article has its own convergence." Poetry and Fu are divided into different styles and categories. Category, each in the same era "(preface to Selected Works). Judging from the actual situation of classification, it can be roughly divided into three categories: Fu, Poetry and Literature, and then into 38 categories: Fu, Poetry, Sao, Strange, Zhao, Shu, Preface and Teaching. Fu and poems account for the largest proportion. According to the content, Fu is divided into five branches, such as Kyoto, Suburb Sacrifice, Agricultural Records, etc. 15, and poems are divided into 23 branches, such as making up for the death, expressing virtue and admonishing. This classification reflects Xiao Tong's theoretical viewpoint on the development of ancient literature, especially on the classification and origin of literary styles, and reflects that stylistic analysis has entered a very detailed stage at that time.