Qinghai-Tibet Railway is the highest altitude and most long-distance railway in altiplano of the world. 960 km of the Qinghai-Tibet railway located 4,000 meters above the sea level and the highest point at 5,072 meters. The project is dubbed an "engineering marvel" because there were and are many technical difficulties for such a railway which was built on the permafrost for such a high altitude. On the second section from Golmud to Lhasa, 1142 km completely, include 45 train station and 38 are unstaffed. To meet the system requirements, a Intelligent Autonomous Decentralized Systems (IADS) technologies was applied to such a low-density line for first time in China. Some key technologies adopted in the system like signaling system were provided from Kontron. Based on CompactPCI system, most valued reliability, flexibility and long-term availability were delivered to the whole management system.