Although the social significance of Li Shangyin's poems is not as good as that of Li Bai, Du Fu and Bai Juyi, Li Shangyin is the most influential poet in later generations, because there are more people who like Li Shangyin's poems than Du Li and Bai Juyi. Among the 300 Tang poems edited by Sun Zhu in Qing Dynasty, there are 32 poems by Li Shangyin, second only to Du Fu (38 poems), Wang Wei (29 poems) and Li Bai (27 poems). This anthology of Tang poems is a household name in China, from which we can see Li Shangyin's great influence on ordinary people.
In the late Tang Dynasty, Han Wo, Wu Rong, Tang and others began to consciously learn Li Shangyin's poetic style. In the Song Dynasty, more poets studied Li Shangyin. According to Ye Xie, "There were seven unique poets in the Song Dynasty, probably/kloc-0 studied Du Fu in 1967 and/kloc-0 studied Li Shangyin in 1934." (Original Poetry) In the early years of the Northern Song Dynasty, Yang Yi, Qian and other clansmen, Li Shangyin, often sang in harmony with each other, pursuing gorgeous rhetoric and neat antithesis, and published a collection of Kunxi Appreciation, which was called Titi. It was quite influential at that time, but he didn't learn the essence of Li Shangyin's poetry and his achievements were very limited. His influence also disappeared with Ouyang Xiu and others entering the literary world. In addition, Wang Anshi also spoke highly of Li Shangyin, thinking that some of his poems were "unbearable for Lao Du" (Cai Kuanfu's poems). Wang Anshi's own poetic style is also obviously influenced by Li Shangyin.
Poets in the Ming Dynasty were all influenced by Li Shangyin from The First Seven Sons to Qian and Wu. People who like to write erotic poems in the Ming and Qing Dynasties specialize in Li Shangyin's untitled poems, such as Yi Yun Ji and Yi Yu Ji by Wang Yanhong, a poet in the late Ming Dynasty. Romantic poetry in the novels of Yuanyang Butterfly School in the Republic of China was also influenced by him.
Regarding Li Shangyin's influence on later generations, we can refer to the influence of Wu Diaogong on poetry in the Northern Song Dynasty, Li Shangyin's Sunset Red in the Qing Dynasty, the influence on the formation of Li Shangyin's poems, and the graceful and restrained poems of Liu Xueyan in the Tang and Song Dynasties.
(The above content is taken from the entry of "Li Shangyin" in Baidu Encyclopedia)