Guangnan County is a county under the jurisdiction of Wenshan Prefecture, Yunnan Province, located in the southeast of Yunnan Province, in the northeast of Wenshan Prefecture, and at the junction of Yunnan, Guangxi and Guizhou provinces (regions). It is adjacent to Funing County in the east, Xichou County and Malipo County in the south, Qiubei County and Yanshan County in the west, Xilin County of Guangxi Zhuang Autonomous Region and Xingyi City in Guizhou Province in the north. The whole county covers an area of 7810 square kilometers and has jurisdiction over 18 townships (towns). According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent population of Guangnan County was 771948.

Guangnan County has won the honorary title of "2018 Comprehensive Demonstration County of E-commerce in Rural Areas". In March 2019, it was listed in the first batch of districts and counties for the protection and utilization of revolutionary cultural relics. On November 13, 2020, Guangnan County was approved by the People's Government of Yunnan Province to withdraw from the poverty-stricken county. In August 2021, it was selected as the national key county for rural revitalization.

In 2020, Guangnan County achieved a GDP of 16.696 billion yuan, a year-on-year increase of 7.2% (the same below) at comparable prices in 2015, of which the added value of the primary industry was 4.907 billion yuan, an increase of 5.7%; The added value of the secondary industry was 4.687 billion yuan, up 12.9%, including 1.794 billion yuan, down 2.3%, and 2.894 billion yuan, up 27.6%; The added value of the tertiary industry was 7.101 billion yuan, up 4.3%. The tertiary industrial structure was adjusted from 31.3:24.1:44.6 at the end of the 12th Five-Year Plan to 29.4:28.1:42.5. The per capita GDP reached 21585 yuan, an increase of 10%, an increase of 3397 yuan over the previous year. The added value of non-public economy was 8.255 billion yuan, up 5.6%, accounting for 49.4% of GDP, down 1 percentage point from the previous year.