In fact, the application of cloud computing in China is still in a decentralized and small-scale stage. Libraries can use cloud computing technology to store and manage digital resources, provide knowledge, resource management platform and information literacy platform based on cloud computing, and change the traditional library business process. First of all, cloud computing can provide a SaaS cloud service platform for library readers' literature knowledge service. On this knowledge platform, readers can query, obtain, manage, personal space and edit all kinds of literature resources in the library online. At the same time, the library can provide an online information literacy platform for cloud computing based on SaaS. At present, the information literacy training of library users has been mentioned in a very important position; Based on the service platform of cloud computing, readers are guided to use various new technologies and methods of library information efficiently by integrating FAQ, online course learning, online on-demand and Web+IM-based reference consultation. User-centered: data exists in the sea of clouds, and readers can obtain it safely anytime and anywhere or share it with others in a convenient way. Secondly, cloud computing may change some original publishing, distribution and utilization modes of digital resources. For example, after the e-book is published, the copyright is directly sold to the data storage party, which provides it for readers to read, and readers can collect royalties on time or according to the amount of reading. However, in view of this influence, it may be more attractive for readers to buy the copyright of e-books and provide them for free use. Cloud computing providers (that is, search engine service providers, such as Google, etc.). ) will master more abundant information resources than libraries and play an increasingly important role in information services. Libraries can take advantage of their own technology and resources to consider and purchase more comprehensive and convenient online resources for readers. Third, cloud computing may change the traditional way of library cataloging. All bibliographic data are stored in the cloud, and the job of library staff is only to select relevant books and paste the collection number and related information into a table in the cloud database. When it is put on the shelf, it can be catalogued through advanced technologies such as network and RFID. Libraries may pay more attention to the transformation and unification of classification standards, and the cooperation between libraries is becoming more and more important. Finally, cloud computing needs a high standard network architecture, and cloud service is a network-based service, which puts high demands on the network speed and architecture of the library. It is possible that in the early stage of applying cloud services, some hardware and storage funds will be invested in network upgrade. Libraries should provide readers with opportunities to access the Internet anytime and anywhere. It is an efficient and quick way to build a fast wireless network in the library, but the related authentication and fees will bring new management problems to the library.