Kaiyuan City, located in the southeast of Yunnan Province, is under the jurisdiction of Honghe Hani and Yi Autonomous Prefecture. It is connected to Yanshan in the east, Qiubei in the south, Mengzi and Gejiu in the south, Jianshui in the west and Maitreya in the north. It is a traffic fortress and central city in southeast Yunnan. With a total area of 1950 square kilometers, it has jurisdiction over 7 towns and townships. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent resident population of Kaiyuan was 323031.

Kaiyuan is rich in coal resources. Xiaolongtan, 20 kilometers away from the urban area, has a lignite reserve of 1.2 billion tons, which is the largest open-pit coal mine in Yunnan with an annual mining capacity of 6.3 million tons. There is a 600000 kilowatt pithead power plant. Cement, fertilizer, sugar making, paper making, wine making, food and other industries are beginning to take shape.

In March 2015, Kaiyuan was officially named the National Health City by the National Health Care Association. 2019 Top 100 counties and cities in western China. On December 31, 2019, it was selected as a typical county for rural innovation and entrepreneurship in China. In October 2020, it was rated as a national model city (county) for mutual support.

In 2020, Kaiyuan achieved a GDP of 26.924 billion yuan, an increase of 6.2% year on year, 3.9 percentage points, 2.2 percentage points and 1 percentage point higher than the national, provincial and prefectural levels. Among them, the added value of the primary industry was 2.802 billion yuan, up 5.9% year on year; The added value of the secondary industry was 10.574 billion yuan, up 7.8% year on year; The added value of the tertiary industry was 13.548 billion yuan, up 4.8% year on year. 1、 The proportion of the second and third industries is 10.4:39.3:50.3.