The invention relates to a system for recycling and reusing books. The system comprises a book recycling box and a management server, a dropping opening is formed in the book recycling box, a barcode recognition module is arranged at the outer side of the book recycling box, and the barcode recognition module comprises a barcode recognizer, an information storage module and a transmitting module; the barcode recognizer is used for recognizing a barcode on a dropped book, and the transmitting module sends information obtained by the barcode recognition module to the management server. By means of the system, various second-hand books can be collected, data acquisition and information compiling are conducted, the system is communicated with a book borrowing and returning module of a library, the collected second-hand books can be inquired conveniently, the dropped second-hand books can be scored through the system, and recycling of the second-hand books and virtuous circle of borrowing are promoted.