大数据与云计算以其所蕴含的巨大的商业潜能,以及改变互联网格局的能力得到了各大厂商,IT行业乃至整个社会的重视。面对这个新时代的到来,图书馆如何利用新技术改变现有的知识服务、完成最终意义上的个性化知识服务成为一个新的课题。本文通过对大数据概念和知识服务发展状况的介绍,构建了大数据时代图书馆个性化知识服务的模式,阐述了大数据时代给图书馆知识服务带来的机遇与挑战。 Big data and cloud computing with its huge business potential, as well as the ability to change the Internet structure has been the major manufacturers, IT industry and the community as a whole. In the face of this new era, how to use the new technology to change the existing knowledge service library, to complete the final sense of personalized knowledge services has become a new topic. By introducing the concept of big data and the development of knowledge service, this paper constructs the model of personalized knowledge service in the era of big data and expounds the opportunities and challenges that library knowledge service brings in the era of big data.