Qinghai-Tibet Railway, referred to as Qinghai-Tibet Railway for short, is a Class I national railway connecting Xining City, Qinghai Province to Lhasa City, Xizang Autonomous Region. It is one of the four major projects in China in the new century, the first railway leading to the hinterland of Tibet, and the plateau railway with the highest altitude and the longest route in the world. ?

The Qinghai-Tibet Railway was completed in two phases. The first phase of the project starts from Xining in the east and ends in Golmud in the west. 1958 started construction and was completed and opened to traffic in may 1984. The second phase of the project starts from Golmud in the east and ends in Lhasa in the west. It started on June 29th, 2006 and was opened to traffic on July 60th, 2006.

The Qinghai-Tibet Railway has a wide and far-reaching influence on changing the poverty and backwardness of the Qinghai-Tibet Plateau, enhancing the unity and progress of all ethnic groups, and promoting the sound and rapid economic and social development of Qinghai-Tibet.

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The Qinghai-Tibet Railway passes through China National Nature Reserve, such as Hoh Xil, Sanjiangyuan and Qiangtang. Because it is located on the roof of the world, its ecological environment is sensitive and fragile.

In this regard, the Qinghai-Tibet Railway has always adhered to the concept of "environmental protection first" from design, construction to operation and maintenance. For example, in order to protect the living environment of wild animals such as Tibetan antelope, 33 special passages for wild animals have been established across the railway;

In order to improve the ecological environment along the line and create a "green corridor" thousands of miles away. These unique environmental protection design, construction and operation concepts also make the Qinghai-Tibet Railway the first "environmental protection railway" in China.