Yunlong County is subordinate to Dali Bai Autonomous Prefecture of Yunnan Province. It is located in the west of Yunnan Province and the northwest of Dali Bai Autonomous Prefecture. The total area is 4400.95 square kilometers. In 2021, Yunlong County will have a total registered residence population of 207900. The minority population is 1831000, accounting for 88.1% of the total population; As of October 2021, Yunlong County has 4 towns and 7 townships under its jurisdiction.

In Han Dynasty, it is called "Bisu" County. In 1961, Yunlong County was restored and still belongs to Dali Bai Autonomous Prefecture. Yunlong County is a comprehensive demonstration county of e-commerce in rural areas. In 2020, Yunnan Provincial People's Government approved Yunlong County to withdraw from the poverty-stricken county sequence.

In 2021, Yunlong County's GDP will reach 7.625 billion yuan, up 4.6% from the previous year. From the perspective of industries: the added value of the primary industry is 1.84 billion yuan, and the added value of the secondary industry is 2.961 billion yuan; The added value of the tertiary industry is 2.822 billion yuan, and the tertiary industrial structure is 24.1:38.9: 37.0.