People's Republic of China (PRC) (China) Quanjiao County, under the jurisdiction of Chuzhou City, Anhui Province, is named after Quanjiao City and Jiaoling Mountain. Originally a friendship, the county was established in the Western Han Dynasty and was under the jurisdiction of Chuzhou from the Eastern Jin Dynasty to the Qing Dynasty. Now it is the sub-central city of Dachucheng, the core city of Nanjing metropolitan area, and the northern wing city of Wanjiang City.

Quanjiao County is located in the east of Anhui Province, with latitude 3151'-3215' and longitude118 25'. Dong Chuzhou quanjiao

It is 48km away from Nanjing in the north, 360km away from Shanghai, Chuzhou 18km away from Hefei in the west and 70km away from Maanshan in the south. It is the oldest county in Chuzhou and the southernmost county in Chuzhou, and is known as the "South Gate of Chuzhou". Shanghai-Shaanxi Expressway (Hening Expressway), Ningxi Railway (Hening Railway) and Beijing-Shanghai Expressway all run through the whole territory.