Tianzhen County, belonging to Datong City, Shanxi Province, is located in the northeastern end of Datong City, is located in Jin, Hebei, Mongolia, three provinces (districts) at the junction, east of Hebei Province, Huai'an County, west of Shanxi Province, Yanggao County, south of Hebei Province, Yangyuan County, north of the wedge of Inner Mongolia, Xinghe County, known as the "chicken sound heard in the three provinces," the name. Tianzhen County has a total area of 1,718 square kilometers, jurisdiction over 5 towns (Yuquan, Guqianbao, rice pay off, Lu Jiawan, Xinpingbao), 6 townships (thirty store, Jiajiatun, Zhaojiagou, Majiasha, South GaoYa, ZhangXihe), 172 administrative villages, 16 communities, is the national poverty alleviation and development work focus on the county, the country is included in the Yanshan-Taipei mountain contiguous areas of special hardship. As of the end of 2022, the resident population of Tianzhen County was 158,976. Tianzhen County has a long history, as early as in the Neolithic era there are human beings living, the Warring States period for the State of Zhao Yanling euphony, the Western Han Dynasty built Yanling County, Tang set up Tiancheng Army, Liao Dynasty changed to Tiancheng County, the Jin Dynasty for the Tiancheng Castle, the Ming Dynasty and reformed as Tiancheng Wei, Zhenruwei; Qing Shunzhi three years (1646) synthesized Tianzhen Wei, Yongzheng three years (1725) called Tianzhen County. There are 407 cultural relics and monuments in the county, and 47 cultural relics protection units above the county level. Ciyun Temple, Shaliangpo Han Tomb Group is a national key cultural relics protection units, Li Erkou Ming Great Wall was selected as one of the first national important points of the Great Wall, Li Erkou Great Wall Scenic Spot was named national 4A scenic spot, Xinpingbao Town was named China's Famous Historical and Cultural Town, the characteristics of the famous landscape tourism town, Baiyangkou, ShuiMoKou, AnJiaSoap was selected as the national list of traditional villages, the Yuhuang Pavilion, the Panshan grottoes, HuiQing Pagoda, the HeLongSi, the ShenTouShan and other Cultural relics and sites renowned in the province and city, late Cretaceous dinosaur fossils, Datong purple jade enjoys high visibility, ancestor culture, border culture, military culture, agricultural and pastoral culture, Buddhist culture. On February 27, 2020, Tianzhen County withdrew from the poverty-stricken county by the Shanxi provincial government. In 2022, the annual gross regional product of Tianzhen County is 5459.25 million yuan, with a growth rate of 5.2%.