Hulunbuir, a prefecture level city under the jurisdiction of the Inner Mongolia Autonomous Region, is located in the northeast of the Inner Mongolia Autonomous Region, named after Hulun Lake and Beier Lake. It is connected to Hinggan League in the south, Nenjiang River in the east and Heilongjiang Province, Russia in the north and northwest by Erguna River, and Mongolia in the west and southwest. The city has jurisdiction over 2 municipal districts, 4 flags and 3 autonomous flags, and 5 county-level cities in charge, with a total area of 253,000 square kilometers; By the end of 2021, the city's permanent resident population is 2,213,900.

Hulunbuir has a three-dimensional transportation network of railway, highway and air. Binzhou Railway and 301 National Highway run through the city. There are two international airports in Hailar and Manzhouli, and more than 50 international and domestic air routes have been opened to Russia, Mongolia, Beijing, Hohhot, Harbin, Shanghai, Guangzhou, etc. Adjacent to Russia and Mongolia, it is the only border city of China, Russia and Mongolia, with 8 national ports such as Manzhouli and Heishan. Hulunbuir is an excellent tourism city in China, the only key development area of grassland tourism in the country, and a national tourism reform and innovation pilot area. The Hulunbuir Grassland within the territory is one of the four great grasslands in the world and one of the 20 scenic spots of national tourism. It has been selected as the National Forest City, the top ten ice and snow tourism cities in China, the national logistics hub bearing city, and the national model city (county).

In 2021, the regional GDP of Hulunbuir reached 135.48 billion yuan, an increase of 5.5% at comparable prices.