His metrical poems inherit Du Fu's tradition in technique, and some of his works are similar to Du Fu's in style. Similar to Du Fu, Li Shangyin's The Book of Songs often uses allusions, which is more profound and difficult to understand than Du Fu's allusions, and every sentence often uses allusions. He is unique in the use of allusions, likes to use various symbols and metaphors, and sometimes he doesn't know what the purpose is when he reads complete poems. The meaning of allusions themselves is often not what Li Shangyin wants to express in his poems. For example, "Chang 'e", some people intuitively think it is a work praising Chang 'e, Ji Yun thinks it is a work mourning, some people think it is a description of a female Taoist priest, or even a poet's self-report, and there are different opinions.
It is also his style of using allusions that forms his unique poetic style. According to Huang Jian's note "Yang Wengong Yuan Tan" in Song Dynasty, every time Li Shangyin wrote a poem, he would consult a large number of books, and the room was littered with stalls, which was compared to "Rex sacrificing fish". Wang Shizhen of the Ming Dynasty also said in a joking tone: "Rex Festival was once held in Ao Yun, and it was a piece of brocade." Criticism [8] thinks that he sometimes uses too many allusions and makes obscure mistakes, which makes people unable to understand his poems. Mr. Lu Xun once said: "Yu Xi was born with clear pronunciation and beautiful sentences. How dare he compare with others? I am dissatisfied with too many allusions." (Letter to Yang Jiyun in February 1934)
In addition, Li Shangyin's poems are gorgeous and good at describing and expressing subtle feelings. Li Shangyin is famous for his untitled poems. According to the statistics of poems collected in Li Shangyin's Poems, it can be basically confirmed that there were 15 poems entitled "Untitled" when the poet created: untitled (looking in the mirror at the age of eight), untitled (looking at Liang Chu with deep affection) and untitled two (stars last night; I heard "Nagato" and "Four Untitled Poems" (that is empty talk; Southeast; Affectionate spring night; Where to pay tribute to Zheng), Untitled (brief encounter), Untitled (the fairy of the son-in-law), Untitled two songs (; Five poems, such as the curtain falls deeply), untitled (near-famous Ahou), untitled (haunted by the white road) and untitled (Wan Li storm), are often marked as untitled in the current poetry collections (five poems "You are tireless in appreciating others", four poems "Painting with Long Eyebrows" and "Princess Shouyang", although the social significance of Li Shangyin's poems is not as good as that of Li Bai, Du Fu and Bai Juyi. This anthology of Tang poems is a household name in China, from which we can see Li Shangyin's great influence on ordinary people.