Milin County is located in the southeast of Tibet Autonomous Region, southwest of Nyingchi City, middle and lower reaches of Yarlung Zangbo River, between Nianqing Tanggula Mountain range and Himalayan Mountains, connected with Metuo County in the southeast, Lang County in the west, Bayi District in the north, Gongbujiangda County in the northwest, and Longzi County in the south. The total area is 9500 square kilometers, the terrain is high in the west and low in the east, with an average altitude of 3700 meters. It is a semi-humid monsoon climate in the temperate zone of the plateau, with an average annual temperature of 8.2℃, annual precipitation of 641 mm and ample sunshine. According to the seventh census, the permanent population of Milin county was 26,176 as of midnight on November 1, 2020.

With a total population of 23,000, Milin County has jurisdiction over 3 towns and 5 townships (including one ethnic township) and 100 villagers' committees. Dongduocun, the resident of the county government, is 480 kilometers away from Lhasa City, the capital of the autonomous region, and 72 kilometers away from Bayi District, the seat of the Nyingchi Municipal people's Government. It is subordinate to Nyingchi City and is the political, economic, cultural and transportation center of Milin County.
In 2019, Milin County's gross domestic product (GDP) reached 1.814 billion yuan, an increase of 8.1 percent over the previous year based on comparable prices.
The Lhoba culture was included in the third batch of the National Intangible Cultural Heritage List. Nanyi Valley is a famous and colorful scenic spot.
In October 2018, the People's Government of Tibet Autonomous Region officially approved Milin County's withdrawal from poverty. [1] In October 2020, it was awarded as the national model city (county) of double support.