Fenxi County, subordinate to Linfen City, Shanxi Province, is located in the north of Linfen City, in the south of the east of Luliang, in the north of Jiaokou County of Luliang City and Lingshi County of Jinzhong City, in the south of Hongdong County, in the west of Gushe Mountain, adjacent to Xi County and Puxian County, in the east of Fenhe River, facing Huozhou City, with a total area of 880 square kilometers. As of 2018, Fenxi County has jurisdiction over 5 towns and 3 townships. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent population of Fenxi County is 104627.

As early as more than 4000 years ago in the Neolithic Age, human beings have multiplied in Fenxi, and the county was founded in the Northern Qi Dynasty. Fu Mengchen and Zuo Cheng in the Yuan Dynasty, Hou Qicheng officials paid homage to the officials of the Qing Dynasty. In modern times, Xing Shizhen, who died with Peng Pai, Li Miaozhai, who fought with Xi Zhongxun, and other early outstanding leaders of the Communist Party emerged.

In 2020, Fenxi County will achieve a GDP of 2.44299 billion yuan, an increase of 5.3% over the previous year. Among them, the added value of the primary industry was 363.5 billion yuan, an increase of 5.8%, accounting for 14.9% of the GDP; The added value of the secondary industry was 488.81 million yuan, up 16.8%, accounting for 20% of the GDP; The added value of the tertiary industry was 15906.8 billion yuan, up 2%, accounting for 65.1% of GDP.