Cloud Computing Technology and Digital LibraryAbstract:As a rapidly developing new information technologies,Cloud computing has been applied in many fields at home and abroad ,it will also help the construction and development of the Digital Library bringing the impact which can not be ignored. On the basis of introducing the principle of cloud computing,discuss the influence of Cloud computing on the University Digital Library and some problems which should be pay attention to 。 The article firstly analyzes the concept of cloud computing, the concept and difficulties of digital library , and the cloud on the Digital Library from the information resources, information users, information workers and information facilities. In the end , it prospects the development for the future. Cloud computing has brought us a new perspective to look at the current resource—sharing problem , cloud computing can be applied to digital library resources to improve information sharing capabilities and improve resource utilization. Our results show that a cloud implementation may be a feasible alternative for its continued operation and growth.Key Words: Cloud Computing, Digital Library, Cloud Computing ApplicationsIntroduction section With the popularity of Internet and upgrading network technology , It has quietly entered our lives becoming a part of people’s lives , changing our way of life 。 We used learn and acquire knowledge in the classroom , books and libraries 。 Now we can query the information we want at comfortable home 。 Computer technology brought fresh blood to the old library science ,also brought inevitable problems. Today , the shortcomings malicious attack or a single server mode will lead ir...