云计算作为一种全新的互联网应用模式,其应用发展迅速,而安全性是用户选择云计算应用时首先考虑的因素。在介绍云计算的概念、特点基础上,结合数字图书馆数据安全的现状,探讨了云计算环境下数字图书馆面临的安全问题,给出云计算环境下的数据安全性解决策略和建议,最后使用仿真技术进行安全研究实验。 Cloud computing as a new model of Internet applications, its rapid development of applications, and security is the first consideration when users choose cloud computing applications. Based on the concept and characteristics of cloud computing and the status quo of digital library data security, this paper discusses the security problems faced by digital libraries in the cloud computing environment and gives some strategies and suggestions for data security in cloud computing environment. Finally, Use simulation technology for safety research experiments.