Chenggu County, which belongs to Hanzhong City of Shanxi Province, is located in the abdomen of Hanzhong Basin in the south of Shanxi Province, north of the southern foot of Qinling Mountains, the Northern Slope of Bashan Mountain in the south, the Pingchuan of Han River in the middle, between east longitude 107°03 '-107 °30' and north latitude 32°45 '-33 °40', with a total area of 2265 square kilometers. It has jurisdiction over 2 subdistricts and 15 towns.

Chenggu has been established as a county for more than 2,300 years since the Qin Dynasty. It is a "famous historical and cultural city" in Shanxi Province. It is the birthplace and burial place of Zhang Qian, a famous diplomat, explorer and Silk Road pioneer of the Western Han Dynasty, and Li Gu, the first officer of the three dynasties of the Eastern Han Dynasty, who is known as the "mouthpiece of Beidou". There are 437 places of historical interest, cultural landscape and cultural sites in the territory, and more than 4,000 cultural relics (groups) in the collection, including 276 national precious cultural relics (groups). Yuanhu is the country's largest planting base county, one million pig production base county, enjoy the "hometown of citrus", "hometown of giant salamander", "natural medicine" reputation; 19 kinds of mineral resources of 9 categories have been proved, especially the large reserves and high grade of silica.

By the end of 2021, Chenggu County has a permanent population of 439,000. In 2021, Chenggu County achieved a regional GDP of 28.244 billion yuan, of which the added value of the primary industry was 5.781 billion yuan, the secondary industry 13.347 billion yuan, the tertiary industry 9.116 billion yuan, and the per capita GDP of 64,118 yuan.