Abstract: The large-span structure of the National Stadium Beijing is one of the largest span sports buildings in the world presently. With unique shape, huge size of the elements as well as a large number of spatial twisted members, the structure has exceeded the coverage of the existing technical specifications. Its design, fabrication and erection, which are unprecedentedly complex, have posed tremendous challenges. New technologies, materials and processes employed in the design as well as plenty of research and technical innovations have filled many vacancies in China, and the results from these efforts have reached the international leading standard.