Abstract: In the Qing dynasty， the adjustment of administrative divisions in northern Anhui province revised the administration structure between independent departments subordinated to the province and prefectures，increasing and decreasing the number of counties，and transferring secondary officers outside the departments. In the Yongzheng period，the jurisdiction of Fengyang prefecture encompassed such a vast area，with a large population，remote from the ruling center that it was difficult to carry out effective administration，that that it was divided into four independent departments province and Yingzhou prefecture was divided into Shouzhou and Fengtai County established because of high homicide rate and unruliness in the broader area. During the Qianlong reign，because flood damaged the city and other factors，part of Linhuai County became Fengyang County，Hong County was dissolved and combined into Sizhou，and Sizhou was placed under Hong City’s administration. During the Tongzhi reign，in order to deal with problems arising from the rich earth，bold people，the disorder of the Nian Rebellion，and other factors，the Qing government took four departments and counties from Mengcheng and established Guoyang County. Meanwhile，in order to enhance control，the Qing government assigned secondary officers in addition to those in the original jurisdiction.