The mission of the university library is to provide knowledge and information to support teaching and research. However, with the change of information seeking behavior of university students, university libraries should transfer their service to meet users' needs. In view of this, the study aimed to enhance the user experience by re-examining the services of the university library and proposing innovative service strategy. This project followed what's called a user experience innovation design process which has been used by Copenhagen Institute of Interaction Design to improve the university library services. Beginning with user research, this paper used the qualitative approach such as literature review, interviews, and field observations to collect user information. We use a set of tools and techniques to take the user's needs into account at every stage of the library service. Firstly, we created a user journey map to identify touchpoints that characterize users' interaction with the service. Furthermore, the research team developed the innovation challenge topic, inviting a user to participate in concept generation stage and prove innovation concepts embodied by scenarios and prototyping. Finally, the research team designed an APP to link all innovative service concepts and proposed a service blueprint to illustrate how to implement the innovative service in the university library.