Nestled within the Hulunbuir Grasslands of Inner Mongolia lies a sparkling jewel—Dalai Lake. In 2002, it was designated as a UNESCO Biosphere Reserve, covering an area 3.6 times the size of Shenzhen.

As a vital part of northern China's green ecological shield, Dalai Lake Biosphere Reserve, together with the Hulunbuir Grasslands and the Greater Khingan Range forests, safeguards this vast expanse of land.

Dalai Lake is the largest lake in northern China. Within the reserve, lakes, rivers, grasslands, and reed marshes weave together to form a unique ecological landscape. This diverse environment provides ideal habitats for 485 species of higher plants, 40 species of fish, 5 species of amphibians and reptiles, 346 species of birds, and 38 species of mammals.

Its unique geographic location makes Dalai Lake an important breeding ground for waterfowl in Asia and a sanctuary for rare bird species such as the white-naped crane, red-crowned crane, whooper swan, golden eagle, and black stork. It also serves as a critical stopover along the Oceania–Northeast Asia migratory route.

Since ancient times, the Xianbei, Mongolian and other northern nomadic peoples have thrived here. On this "green sanctuary," nature and humanity have coexisted in harmony for centuries.