150,000 copies. According to the query of local treasures in Beijing, the new Beijing Library has a building area of 6.5438+0.4 million square meters, which can accommodate 6.5438+0.5 million books at most. Truss structure layout, supporting area of 6.5438+0.2 million square meters. 654.38+0.987 It was completed and opened on June 6th, and later renamed as the National Library. The building scale is second only to the Library of Congress in the United States, ranking second in the world.