本文依据数字图书馆面临的安全威胁,提出了一种定性分析与定量计算相结合的风险评估模型,构建了数字图书馆网络信息安全保障与安全建设体系。该评估体系具有可行性和指导性,对数字图书馆网络与信息系统安全防护和管理起到指导作用。 Based on the security threats faced by digital libraries, this paper proposes a risk assessment model combining qualitative analysis with quantitative calculation, and constructs the system of network information security assurance and security for digital library. The evaluation system is feasible and instructive, guiding the security and management of digital library network and information system.