Among the poets in the Tang Dynasty, () () was called "Da Du Li"; Known as Du Xiaoli is ().

Da Du Li-Li Bai and Du Fu

Du Lixiao —— Li Shangyin and Du Mu

Not only in the Tang Dynasty, but also in the history of the development of China's classical poetry, Du Fu was a poet as famous as Li Bai. These two great poets, one as the peak of romanticism and the other as the peak of realism, not only became the symbol of the development of poetry in the prosperous Tang Dynasty, but also the peak of the development of classical poetry in China.

Little Du Li "Little Du Li" refers to the late Tang poets Li Shangyin and Du Mu. The role of "Little Du Li" in the poetry circle of the late Tang Dynasty cannot but be compared with that of the great "Du Li" in the prosperous Tang Dynasty. If Li Bai and Du Fu jointly created an almost unattainable poetic peak in the prosperous Tang Dynasty, then Li Shangyin and Du Mu added a magnificent page to the declining poetic style in the late Tang Dynasty.