Liu Yuxi (772~842) was born in Pengcheng (now Xuzhou, Jiangsu), a poet and philosopher in the middle Tang Dynasty. Advocating political innovation is one of the core figures of the Wang school's political innovation activities. Later, he was demoted to Langzhou Sima and Lianzhou Secretariat, and made a guest appearance as a prince in his later years. Some of his poems reflect the author's progressive thoughts. Poems such as Zhuzhici written by learning folk songs are fresh and lively, healthy and cheerful, and have a unique artistic conception. The language is concise and vivid, and the feelings are lingering. Representative works include Wuyi Lane, Autumn Poems, Zhuzhi Ci (VI), Langtaosha (I), Langtaosha (VIII), Yang Liuzhi (I), Old Times of Xipaotai Mountain, and The First Reward for Lotte in Yangzhou, among which bamboo. His collection of poems includes Liu Bin Ji.
The ancestors were Huns, and the Northern Wei Dynasty was renamed Han surname, living in Luoyang. Claiming to be the descendant of Hanzhong Mountain King. Jinshi between Tang Zhenyuan. He used to be the chief bookkeeping supervisor of Weinan County, Jingzhao Prefecture. Later, because Wang failed to participate in the innovation group, he was demoted to Langzhou Sima, and later moved to Lianzhou as a secretariat. In his later years, as a guest of the prince and an official of the school etiquette department, he was called Liu Bin. He is a poet, as famous as Bai Juyi before his death. His name is Bai Liu, and he has over 100 famous poems.