Yanshi City (Yanshi City) generally refers to Yanshi District. Yanshi District, subordinate to Luoyang City, Henan Province, is located in the west of Henan Province, in the east corner of Luoyang Basin. Its geographical coordinates are 112 ° 26 ′ 15 ″ - 113 ° 00 ′ 00 ″ E and 34 ° 27 ′ 30 ″ - 34 ° 50 ′ 00 ″ N, with a total area of 668.58 square kilometers. As of June 2020, Yanshi District has jurisdiction over 4 streets and 9 towns. As of November 2020, there are 545632 permanent residents in Yanshi District.

Zhou was set up in Yanshi County. In 1993, Yanshi was removed from the county and set up as a city. In March 2021, Yanshi City at the county level will be abolished and Yanshi District of Luoyang will be established. Yanshi is 80 kilometers away from the provincial capital Zhengzhou in the east and 30 kilometers away from the ancient capital Luoyang in the west. It is a national key development area. Longhai Railway, Zhengzhou-Xi'an High speed Railway, Lianhuo Expressway, National Highway 310 and National Highway 207 are connected, forming a road traffic network extending in all directions with national, provincial and county roads as the trunk and rural roads as the branch. Yihe River and Luohe River run through the whole territory and converge here.

In 2021, Yanshi District will achieve a GDP of 46.468 billion yuan, up 6.1% year on year.