The core of Du Fu's thought is the Confucian thought of benevolent government, and his poetic style is gloomy and frustrated, worrying about the country and the people. He has a great ambition of "making the monarch Yao and Shun superior first, and then making the customs pure". He loves life, people and the great rivers and mountains of the motherland. He hated evil, exposed and criticized the corruption of the imperial court and the dark phenomenon in social life. He sympathized with the people and was even willing to make sacrifices to save their suffering. Therefore, his poetry creation always runs through the main line of worrying about the country and the people, with the most ordinary people as the protagonist, which shows Du Fu's greatness.