Du Fu's life went through a historical turning point in the Anshi Rebellion, and the separatist regime of the war made him deeply attached to the country. He always cares about the progress of the war and national security, so when he hears "the news is in this distant western station!" The north has been taken back! " He couldn't restrain his joy and didn't want to wait for a moment. He just wanted to "come back from this mountain, walk through another mountain, come up from the south, and then go north-to my own town!" . The two banks of the Yellow River were recaptured by the imperial army is the first quick poem of Du Fu's life. It is not as dignified and steady as Du Fu's poems, but it is full of patriotism. When Du Fu lived in Kuizhou (now Fengjie, Chongqing) in his later years, he wrote a group of poems, including eight in autumn, which represented the highest achievement of his life. The theme of eight autumn poems is looking at Chang 'an from afar. One of the important reasons why it has such a high artistic achievement cannot be ignored is that the works not only show the sadness of life experience and the pain of leaving troubled times, but also are full of nostalgia for hometown and feelings for home and country. "Tears gather together for another day, and the lonely boat is the heart of home and country" clearly describes the feelings of home and country. "The sunset in Kuifu lonely city is oblique, and every time it depends on Beidou Wang Jinghua" directly expresses the meaning of homesickness, tragic and desolate, and the artistic conception is deep. Even if the mountains and rivers are broken, even if they are wandering outside, they have never let go of their deep affection for the country for a moment. This is an unshakable firmness and persistence.