This thesis arranges and studies on the rhymes in poetry of Chu Guangxi who was a famous landscape and pastoral poet in Tang dynasty. The full text divides into five parts: The first part, we summarize the study of Chu Guangxi, including all his life, the art achievement and the language quality of his poetry. The second part, we put in order the rhymes in ancient style Chinese poetry and modern style poetry of Tang. The third part, we draw the pronunciation-form in order to describe the rhymes in Chu Guangxi’s poetry clearly. The fourth part, we list all of Chu Guangxi’s poetry, indicate pronunciation position of the rhyme words in Zhong-Gu Ages. The fifth part, we compare the rhymes in Chu Guangxi’s poetry creation with the rhymes in the book of Guang Rhyme, reveal the same and the differences about them. Consider that the rhymes in poetry of Chu Guangxi was relaxed. The phenomenon needs the further research.