In the first year of Qianlong's reign in the Qing Dynasty, Yongzheng had just passed away and Qianlong ascended the throne for the first time, and the situation in the court was delicate. The remnant forces of the old Baye Party have not been completely eliminated, and the new emperor is eager to stabilize the imperial power, but the implementation of the New Deal is blocked by the conservatives; the problem of private land annexation is prominent, the number of refugees is increasing, and small-scale peasant uprisings have broken out in some areas; externally, it needs to deal with the changes in the Mongolian tribes and the rebellion of the southwestern chieftains. The country is at the intersection of power transition and internal and external troubles.