Most compiling books of Chinese classical poems are based on authors or years. However, for reading convenience, readers need a kind of classification based on contents. Automatic classification methods based on contents have been proposed before. Most methods are applied to English documents such as news stories. Fewer studies are done for Chinese classical poems. In this study, we implement an automatic classification system incorporate with several methods and conduct an empirical study to find out which method is more suitable for classified of Chinese classical poems.