Smart library is a growing organism and an important part of modern knowledge ecosystem. Smart libraries use technologies such as Internet of Things, cloud computing, big data, blockchain and artificial intelligence to build intelligent, efficient and ubiquitous literature resources. Smart library can update the book information retrieved by the library in real time through rapid data update and intelligent management platform, so that users can quickly understand the specific situation of borrowing books. In addition, the 24-hour service mode of the smart library, as well as the use of urban bookstores and drifting cabinets, enable readers to better enjoy the services of the smart library.