As ‘the compass’ of China’s general contracting business, Beijing Urban Construction Group has taken the lead of the country’s urban-rail development. Since Beijing Urban Engineering Design & Research Institute Ltd. (BUEDRI) has found in 1958, it holds 29 key patents and has competed over 900 km underground and light-rail’s survey，design and construction work in 30 cities across the country.After years’ development with a great concentration, BUEDRI has made remarkable progress in the fields of urban-rail system planning and research, underground construction invention, integrative facility installation, central monitor-control technology development, environmental-friendly bridge engineering, integrated surveillance system development, construction risk control and assessment etc. It has, therefore, become an omnipotent professional research centre who has won 124 national prizes in key technology innovations and other 69 regional prizes in urban-rail project design and construction survey. It has finally become the authority institution in China’s urban-rail development, moreover took the lead in the compilation works of the nation’s standard and specifications of urban-rail transit design and construction.