Library management information system belongs to database application system. The library management information system uses the database management system (DBMS) to support and manage various services and information of the library. The system organizes, stores and manages all kinds of library data in the form of data structure by establishing, using and maintaining the database, including library collection information, reader information, borrowing records, library equipment management and so on. Through the database application system, the library can efficiently manage and query the collection resources, provide lending services and make statistical analysis.