关键词: 杜甫, 吴体, 永明声律, 四声八病

Abstract: The denotation of Wustyle poetry began to constantly expand after Tang Dynasty. This fact is adverse to our objective understanding of the Wustyle poetrys characteristics. There are only nine poems with the title of Wustyle which were written by Du Fu, Pi Rixiu and Lu Guimeng were identified as Wustyle in Tang Dynasty. Through the generalization of the rhythm norm of sevencharacterYong Ming, the statistics of the mistakes of Wustyle poetry, and the comparison of compound rhythm, the results show that the Wustyle specifically refers to the sevencharactertriolet with flat rhyme. Wustyle poetry is very particular over the antithesis and four tones separation. It pays special attention to four tones opposition of four words and seven words, except the level tone. It also lays emphasis on level and oblique tones opposition of seven words and fourteen words, except the rhyme of first sentence. In Wustyle poetry, the affiliate degree of rhythm between the sentences and couplets is slightly low. The Wustyle poetry combines the simple sentence with compound rhythm, and its rhythm belongs to the broad YongMingstyle rhythm.

Key words: Du Fu, Wustyle, YongMingstyle rhythm, four tones eight problems