Hanshan County, affiliated to Ma 'anshan City, Anhui Province, is located in the middle and lower reaches of the Yangtze River north bank, central and eastern Anhui, Chaohu Lake shore. It is bordered by Maanshan City and County in the east, Chaohu City in the west, Yuxi River in Wuwei County, Wuhu City in the south, and Quanjiao County, Chuzhou City in the north, with a total area of 1,028 square kilometers. It has jurisdiction over 8 towns.

In the sixth year of Tang Wude (623), Hanshan County was named for "the mountains are Zhi, potential if swallow Han", known as Wu Tou Chu Wei said. Lingjiatan ancient cultural site, is a national key cultural relic protection unit, belongs to the late Neolithic Age, more than 5,300 years ago, is the birthplace of Chinese jade culture, the Chinese city history forward more than 1,000 years, known as "the dawn of ancient Chinese civilization" by the domestic archaeological circle. Rich mountain products, rich natural resources. There are more than 10 kinds of proven mineral resources available for mining, such as limestone, gypsum, marble, coal and phosphorus, among which gypsum reserves of 5.8 billion tons, which is the largest single high-quality deposit in Asia. Hanshan has beautiful ecology and numerous tourist attractions, including national 4A scenic spot Baochan Mountain and National 4A Scenic spot Taihu Mountain. The scenic spots of Baochan Mountain include Ancient Zhaoguan, which is famous for the historical story of Wu Zixu, a general of the State of Chu, passing through Zhaoguan, Huayang Cave of Baochan Mountain, which is famous for the famous story of Visiting Baochan Mountain by Wang Anshi, a prime minister of the Northern Song Dynasty, and Zhaogan Hot Spring, which contains radon and other trace minerals. Taihu Mountain scenic area has the Taihu Temple known as "Jiangbei small Nine Hua", the Taihu Mountain National Forest Park with verdure, elegant and deep. Yuncao Ancient Town has a history of more than 1,700 years. Its typical style is "wooden buildings and flagstone roads across the street, and small tiles of black brick and horse head wall".

By the end of 2021, the total registered population of Hanshan County is 442,051 million. In 2021, Hanshan County achieved a gross regional product (GDP) of 23.302 billion yuan, of which the added value of the primary industry was 2.424 billion yuan, the secondary industry 9.702 billion yuan, the tertiary industry 11.175 billion yuan, and the annual per capita GDP of 68,535 yuan.