Li Sao is the masterpiece of Qu Yuan, a famous poet in the Warring States Period. It is the longest romantic political lyric in the history of ancient poetry in China, and it is also the longest lyric in the history of China literature. The whole poem has 373 sentences and more than 2,400 words. The poet described his life experience, moral character and ideal, expressed the anguish and contradiction that he was slandered to death, rebuked the fatuity of the king of Chu, the madness of the villain group and the ineffective governance of Japan, and showed the poet's fighting spirit of adhering to the ideal of "beautiful politics", attacking the dark reality, not colluding with evil forces and his patriotic enthusiasm to death.