Nanxi County (Nanxi County) generally refers to Nanxi District
Nanxi District, affiliated to Yibin City of Sichuan Province, is one of the municipal districts of Yibin City, located in the south of Sichuan Province, adjacent to Jiang 'an County in the east, Cuiping District in the west, Changning County in the south and Fushun County in the north, with a total area of 704 square kilometers. In 2021, the registered population of Nanxi District is 41,300, and the permanent population is 337,000. As of October 2021, Nanxi District has jurisdiction over 3 subdistricts and 8 towns. Nanxi District People's Government in Nanxi Street Zhengtong Road 8.

In the sixth year of Jianyuan (135 BC), Emperor Wudi of the Han Dynasty created "Southwest Yi" and established Qianwei County. The present county belongs to the Bo County of Qianwei County and extends to South Qi. On March 17, 2011, Nanxi County was abolished and established as Nanxi District of Yibin City. Yi Lu expressway within the territory, Zigong to Nanxi a road, another two provincial road S206 Suijun Road, S307 Lu Yan Road through the border. Nanxi ancient Street, Riverside wetland Park, Yuntai Mountain provincial forest Park, Yingzhou Pavilion, Piao Sea Tower, Nanxi Linjiang ancient city wall climbing attractions.

In 2020, the GDP of Nanxi District reached 19.162 billion yuan, an increase of 3.9% over the previous year. The added value of the primary industry was 3.286 billion yuan, and that of the secondary industry was 8.621 billion yuan; The added value of the tertiary industry was 7.255 billion yuan, and the tertiary industry structure was 17.1:45.0:37.9.