Changfeng County, belonging to Hefei City, Anhui Province, is located in the central part of Anhui Province, between Jianghuai, between longitude 116 ° 52 ′ - 117 ° 26 ′, latitude 31 ° 55 ′ - 32 ° 37 ′ between, belongs to the subtropical monsoon humid climate and warm temperate semi-moist climate of the transition zone, near the ocean in the east, west of the back of the inland, the monsoon impact of the Obviously, it has a total area of 1,841 square kilometers. As of 2022, Changfeng County had a resident population of 800,000 people. As of the end of 2022, Changfeng County has 12 towns and 2 townships under its jurisdiction, with the county people's government stationed in Shuihu Town. The name of Changfeng County means "long-lasting peace and prosperity", and the county was established in 1964 by analyzing the border areas of Shouxian, Dingyuan, Feidong and Feixi counties. Because of its location in the Yangtze River and Huaihe River, known as "Huai right lapel throat, Jiangdong shielding", the history of the world-famous Battle of the Interfluve in the northeast of the county Luojian opened. The northwestern part of the county was once the capital of the late Warring States period of Chu Shouchun's gui, the princes and lords of the tombs are gathered here. In the south-central part of the county, the remains of the old city of Chengde, which was built during the Han Dynasty, still exist today. In 2023, Changfeng County realized a GDP of 94.643 billion yuan, a year-on-year growth of 14.3% at constant prices.