The Chinese country big theater located at Beijing town center Tiananmen Square west, west side the Great Hall of the People, south of Xichanganjie, by the national big theater main body construction and the north and south both sides' submarine corridor, the underground parking garage, the artificial lake, the green space is composed, total area 118,900 square meters, total floor space approximately 165,000 square meters, the main body constructs 105,000 square meters, underground ancillary facilities 60,000 square meters. The total investment cost 2,688,000,000 Renminbi (big theater newest announcement's construction cost digit is 3,100,000,000 Yuan). The main body construction by exterior surrounding protection steel structure shell and the internal 2416 seat's opera house, 2017 seat's music hall, 1040 seat's play theater, the public hall and forms a complete set with the room is composed. The exterior surrounding protection steel structure shell assumes half ellipsoidal structure, its plane view thing direction major axis length is 212.20 meters, the north and south direction minor axis length is 143.64 meters, the building is highly 46.285 meters, the foundation burying depth deepest part amounts to the - 32.5 meters. The ellipsoidal structure roofing mainly uses the titanium metal plate facing, middle to gradually open the type glass curtain wall. Outside the ellipsoid shell surrounds the artificial lake, the level of the lake area amounts to 35500 square meters, each kind of channel and the entrance are located under the water surface. National big theater height 46.68 meters, compared to Great Hall of the People slightly low 3.32 meters. But its true altitude must compared to the Great Hall of the People high many, because national big theater 60% constructions in underground, its underground has 10 buildings to be so high highly. The national big theater project began in December 13, 2001, completed in September, 2007.