Who are the representative figures of poetry in the middle Tang Dynasty?

1. The new Yuefu poems represented by Yuan Zhen and Bai Juyi: Bai Juyi put forward the theoretical proposition that "articles should be written in time, and poems should be written in time". Their poems reveal the arrogance, extravagance and cruel exploitation of the ruling class, express sympathy for the people's deep suffering and are deeply disturbed by the weakness of the country.

2. "Shi Gui" Li He: Combining the tradition of Chu Ci and the romantic fantasy of Yuefu, he wrote all kinds of spiritual anguish and pursuit with gorgeous colors and unexpected imagination.

3. Liu Zongyuan expressed his anger through landscape; Liu Yuxi studied Bashu folk songs; Liu Changqing and Wei's Landscape Poems: Li Yi and Lu Xun's Frontier Poems: Han Yu and Meng Jiao created a new style with their excellent poems and pen and ink.