Peking University Library, with more than 3.9 million books, was built in 1899, and the library building of Shi Jing University Hall was built in 1902. It is one of the earliest modern new libraries in China. At present, there are 6 million volumes (pieces) in various collections, among which 6,543.8+0.5 million volumes of China ancient books attract the world's attention, and 200,000 precious books from the 5th century to 654.38+08 century are the cultural treasures of the Chinese nation. In addition, the collection of foreign rare books, epigraphy rubbings and publications before 1949 ranks among the best in domestic libraries and is cherished by researchers. In recent years, a large number of digital resources at home and abroad, including various databases, electronic journals, electronic books and dissertations, have reached hundreds of thousands, which are well received by readers.