Huaiyuan County is subordinate to Bengbu City, Anhui Province. It is located in front of Suixi and Suzhou to the north of Anhui Province, in the middle reaches of Huaihe River, at the south end of Huaibei Plain, near Guzhen, Bengbu and Fengyang to the east, Huainan to the south, Pifengtai and Mengcheng to the west, and Suizhou to the north. It is located between east longitude 116°45 '-- 117°09' and north latitude 32°43 '-- 33°19', with a total area of 2192 square kilometers [22]. It has jurisdiction over 15 towns and 3 townships. According to the seventh census data, as of midnight on November 1, 2020, the permanent population of Huaiyuan County was 935,335.

Huaiyuan County was founded from the Yuan Dynasty to the 28th year of the Yuan Dynasty (1291), known as the "pearl on the Huai River" reputation, popular folk Hua-Gu-Deng, scenic spots and historic sites such as Bairuquan, Bianhe Cave, Wanghuai Tower, etc. On January 22, 2020, it was named the National garden County by the Ministry of Housing and Urban-Rural Development.

In 2021, Huaiyuan County achieved a gross regional product of 38.78 billion yuan; 13.5 billion yuan of investment in fixed assets; Revenue from the general public budget was 2.5 billion yuan; Industrial added value above designated size was 2.6 billion yuan; Total retail sales of consumer goods reached 26.4 billion yuan; The per capita disposable income of urban and rural permanent residents was 37,638 yuan and 20,100 yuan respectively