Menglian Dai, Lahu and Wa Autonomous County (hereinafter referred to as Menglian County), located in the southwest of Yunnan Province, is an autonomous county under Pu'er City, an important gateway to Myanmar, Thailand and other Southeast Asian countries, and an open port at the provincial level. Menglian County is adjacent to Lancang Lahu Autonomous County in the east, Ximeng Wa Autonomous County in the north, and Myanmar in the west and south, with a border line of 133.399 kilometers. By the end of 2018, Menglian County had jurisdiction over 2 townships and 4 towns, covering an area of 1893.42 square kilometers. According to the data of the seventh census, as of 0:00 on November 1, 2020, the permanent population of Menglian Dai, Lahu and Wa Autonomous County was 144693.

The tourism resources are mainly natural resources and human resources, including Menglian Grand Golden Pagoda, Menglian Xuanfu Department, Mengma Hot Spring, Lafu Daheishan Scenic Spot, etc. On September 25, 2018, it was awarded the honorary title of "2018 Comprehensive Demonstration County of E-commerce in Rural Areas" by the Ministry of Commerce. On April 30, 2019, the People's Government of Yunnan Province decided to withdraw Menglian Dai, Lahu and Wa Autonomous County from the poverty-stricken county sequence.

In 2020, the gross domestic product of Menglian Dai, Lahu and Wa Autonomous County will reach 5.168 billion yuan, up 5.7%; The added value of industries above designated size increased by 10.4% year-on-year; Fixed asset investment reached 2.177 billion yuan, up 32.8% year on year; The total retail sales of consumer goods reached 1.892 billion yuan, down 7.1% year on year; The general public budget revenue increased by 20.3% year on year; General public budget expenditure increased by 15.4% year on year; The per capita disposable income of urban permanent residents was 28343 yuan, up 4.7% year on year; The per capita disposable income of rural permanent residents was 11934 yuan, up 8.5% year on year.