In November of the 14th year of Tianhe reign of Emperor Xuanzong of the Tang Dynasty (755), An Lushan rebelled against the Tang Dynasty. In June of the following year, the rebels captured Tongguan, Shaanxi Province, and Emperor Xuanzong of the Tang Dynasty fled to Sichuan in a hurry. In July, the crown prince Li Heng was located in Lingwu (now part of Gansu). He was Emperor Suzong of Tang Dynasty and his reign was Zide. Du Fu inquired and placed his relatives in Duzhou and went to Suzong's court alone. He concluded that he was captured by the rebels on the way and sent to Chang'an, Beijing. He was not imprisoned because of his low official rank. In the spring of Chang'an, the flowers are fragrant, the birds are singing, the spring is full of spring spirit, and the scenery is charming. I should have felt happy, but because of the storm in the city, the writer felt sad at times, so when he saw the beautiful flowers, he spilled wine and shed tears of sadness.

The war separated him from his family, blocking the news, and the flames of war continued to spread to Beijing and Chang'an. He was trapped in Chang'an and was captured by the rebels. He even cut off contact with his family. At this time, he missed the separation even more. The family in the variable. These two sentences, "The flames of war rage on for three months, and a letter from home is worth ten thousand pieces of gold." express a kind of anxious hope and impatient mentality. A letter from home at this time is really more valuable than ten thousand taels of gold! This sentence, with its simple words and deep meaning, has aroused everyone's awareness and understanding and has become a famous saying that has been passed down through the ages. The ending ends with "Failing to beat the hairpin" to show the pain of separation and chaos at that time. As I kept wiping my head, my hair turned white and turned into short hair. It became thinner and thinner, and I couldn't even pin the hairpin.

The whole poem is written in a very frustrating way, with endless emotions that are revealed beyond the words. It is majestic and extremely charming. Huang Chao Uprising, the Central Plains region lost control, the two capitals were in talks, the Chinese nation was in danger of survival, and the people were in dire straits. Du Fu suffered greatly during this great chaos. He was first captured by the rebels and imprisoned in Chang'an, Beijing. Later, he escaped and joined Suzong of the Tang Dynasty. He wanted to serve the country's legal service, but was eventually exiled because of his loyalty and disgrace. During this period, Du Fu traveled around and experienced many misfortunes and pains caused by the war.

During this period, he also wrote famous works such as "Three Officials" and "Three Farewells". The themes are clear and truly and deeply represent that era, which is better than the simple records of historians. The reasons for the "Huang Chao Uprising" were multifaceted, including differences in economic development and class struggle. At the end of Tang Xuanzong's reign, he lived a sensual and sensual daily life all day long. Yang Yuhuan's family was arrogant in the world. The corruption of the exploiting class aggravated people's pressure and promoted the continued aggravation of social problems. The traitors also strengthened the structural differences within the exploiting class, and the power battle between Yang Guozhong and An Lushan became the fuse of Huang Chao's uprising.