云计算是近些年提出的一项新兴技术,深刻地影响未来互联网的运作和服务模式。云计算使图书馆信息服务进入了一个新的发展阶段,云计算时代,网络及用户行为产生了巨大变化,人们不得不对数字图书馆将来的发展进行思考。简述了云计算在图书馆发展的优势,提出了云计算对图书馆发展带来的挑战。 Cloud computing is an emerging technology proposed in recent years, which has a profound impact on the future operation and service mode of the Internet. Cloud computing has brought library information service into a new stage of development. In the era of cloud computing, tremendous changes have taken place in network and user behavior. People have to think about the future development of digital library. The advantages of cloud computing in library development are briefly described and the challenges that cloud computing brings to library development are pointed out.