1. Geographical relationship: Nanjing is located in the southwest of Jiangsu Province, bordering Anhui Province. Nanjing is one of the important cities in the lower reaches of the Yangtze River, and Anhui Province is one of the provinces in the middle reaches of the Yangtze River. There is a close geographical relationship between the two provinces.
2. Economic relations: Nanjing is the capital city of Jiangsu Province and one of the important cities in the Yangtze River Delta. Anhui Province is one of the provinces in the Yangtze River Delta, and the two provinces have close economic ties. Nanjing is one of the important economic centers in Anhui Province. Many enterprises and institutions in Anhui Province have branches in Nanjing, and the trade between the two provinces is also very frequent.