Han Yu greatly admired Li Bai and Du Fu. There is a saying in "Tiao Zhang Ji" called "Du Li's article is there, and the light is long"; In "Shigu Song", I lamented that "Du Fu has gone. Li Bai is dead. "
Huang Jinxiang praised Li Bai and Du Fu: "Only Li and Du Fu performed the best Tang poetry!"
Yan Yu clearly put forward the standard of poetry in Cang Hua, which reached the highest level of poetry in the prosperous Tang Dynasty.