Du Fu was a great realistic poet in Tang Dynasty, with beautiful words, and was called "Du Li" together with Li Bai. Li Shangyin and Du Mu are called "Little Du Li", Du Fu and Li Bai are also called "Big Du Li", and Du Fu is often called "Old Du".
As a teenager, Du Fu traveled to wuyue and Zhao Qi successively, during which he also visited Luoyang. After thirty-five, I came first and last in Chang 'an. Later, he presented gifts to the emperor and presented them to the nobles. The frustration of officialdom witnessed the extravagance and social crisis of the upper class in the Tang Dynasty.