The Yongzheng Dynasty was a classic online novel that described the palace struggles and the struggle for the throne during the Yongzheng period of the Qing Dynasty. It involved politics, military affairs, power tactics, and many other aspects. However, the real "Nine Sons Fighting for the Throne" event was not as simple as in the novel, where several sons fought for the throne. It was a complicated political struggle that involved the interests and motives of many characters. The term "nine sons fighting for the throne" referred to the political struggle between the four sons of Emperor Kangxi of the Qing Dynasty-Yongzheng, Qianlong, Jiaqing, and Daoguang-for the throne after his death. In this struggle, different characters had different purposes and motives, and there were complicated relationships and conflicts of interest between them. This struggle lasted for many years, and in the end, Yongzheng won and became the fourth emperor of the Qing Dynasty. The event of the Nine Sons Fighting for the Crown Prince was one of the common cases of political struggles in the Qing Dynasty. It was of great significance to the study of ancient Chinese politics and palace struggles. At the same time, Yongzheng Dynasty also became a well-loved classic online novel by showing the various phenomena and characters of the palace during the Yongzheng period through fictional stories.