2. Bai Juyi's poems tend to be dull, and the articles put forward are sometimes combined, which leads to many political intentions in the poems, which weakens the artistry and aesthetics of the poems themselves, and also makes the works written by poets who studied Bai Juyi's poems in the late Tang Dynasty and early Song Dynasty too simple and lack artistic sense.
3. Later, Ouyang Xiu, Su Shi and others worked hard to make the Song poetry out of the simple poetic style.
4. Besides, Bai Juyi's own poetry collection "Bai Changqing Collection" was copied separately, so Bai Juyi preserved many poems, but it also weakened the natural elimination function of history. His vast collection of poems has caused great trouble to those who study his poetic style. After all, unlike now, not everyone in ancient times knew which poems were good and which were not.