Because the library of Ocean University of China has its own book purchasing plan and policy, it prefers to purchase books through its own channels and procedures. This can ensure that the library's procurement matches the library's teaching and scientific research needs, which is helpful to ensure the quality of books and the legitimacy of copyright. Donating books is a generous act, but the management and handling of donated books involves a series of problems, such as book quality, copyright issues, library storage capacity and so on. That is, some libraries choose not to support book donation.