Hekou Yao Autonomous County (Hekou County) is located in the southeast of Honghe Hani and Yi Autonomous Prefecture in Yunnan Province, facing Laojie City and Guliu City in Vietnam across the Red River. It is the only autonomous county with Yao as the main body in Yunnan Province. The transportation in Hekou County is very convenient. The Yunnan-Vietnam Railway, Kun River Highway and Red River Channel form a hub here to connect with Vietnam. It is the most convenient land passage to Southeast Asia and the South Pacific in Yunnan Province and even the southwest region. Since the opening to the outside world, Hekou County has vigorously developed the port economy and trade, and established a good economic cooperation relationship with Lao Jie Province of Vietnam. The county has a land area of 1332 square kilometers and a border line of 193 kilometers. The county has jurisdiction over 6 towns and 4 farms. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent population of Hekou Yao Autonomous County was 101971.

On January 22, 2020, it was named the National Garden County by the Ministry of Housing and Urban-Rural Development. On July 10, 2020, it was selected into the list of comprehensive demonstration counties of e-commerce in rural areas in 2020.

In 2020, the gross regional product of Hekou Yao Autonomous County was 11.022 billion yuan, up 6.4% year on year, of which the gross output value of the primary industry was 1.538 billion yuan, up 5.8% year on year; The total output value of the secondary industry was 3.372 billion yuan, up 13.4% year on year; The total output value of the tertiary industry was 6.112 billion yuan, up 2.9% year on year. The investment in fixed assets was 8.9 billion yuan, up 12.3%. The total retail sales of consumer goods reached 2.348 billion yuan, down 2.4% year on year. The local public finance budget revenue was 349 million yuan, which was the same as the previous year; The local public budget expenditure was 2.588 billion yuan, up 20.5% year on year. The total import and export volume of foreign trade was 28.43 billion yuan, up 23% year on year. A total of 1.3814 million tourists from home and abroad were received throughout the year, down 78% year on year.