Shanyin County, a famous historical and cultural city under the administration of Shuozhou City, Shanxi Province, is located in the north of Shanxi Province, between 112°25 '-113°04' east longitude and 39°11 '-39°47' north latitude. It is adjacent to Ying County in the east, Pidai County in the south, Shuocheng and Pinglu District in the west, and Zuoyun, Youyu and Huairen in the north. The county has jurisdiction over 5 towns and 7 townships, with a total area of 1651 square kilometers. County people's government in Dayue town. According to the seventh census, as of midnight on November 1, 2020, the permanent population of Shanyin county was 199,505.

Shanyin County is rich in natural resources, mainly coal, coal production county, known as "coal town".
On September 7, 2018, Shanxi Provincial government officially approved Shanyin County's withdrawal from the "poverty-stricken county" list and announced it to the public. In 2021, the GDP of Shanyin County reached 20.41 billion yuan, with an annual growth rate of 12.3%.