Chu poetry is featured by lyricism. Since its formation at the end of the Warring State Period, it has exerted a profound influence on Chinese literature and culture. Attracted by the unique charm of Chu poetry, numerous scholars have made great efforts to study it. Ever since the ancient times, the rhyme of Chu poetry had gained wide attention. From the changed rhyme use and emotional expression of QuYuan's poetry, it can be found that QuYuan's poetry featured by the lyricism has achieved the balance between the changed rhyme and the emotional expression. The balance has also enhanced the expressive effect of Chu poetry objectively and added to its verbal beauty.