The work aims to investigate the factors that influence patrons' use of smart services in university libraries and provide guidance for the smart service design of university libraries. Firstly, combined with the characteristics of smart services in university libraries, the theory of planned behavior, the technology acceptance model, and the information system success model were integrated to construct model variable relationships and research hypotheses, then a questionnaire was set up based on the literature base and a questionnaire survey was conducted to collect samples. Secondly, the data reliability and validity were evaluated, the maximum likelihood estimation method was used to assess the model's fit, and the model and hypotheses were eventually tested and revised. Finally, the path coefficient relationship between the variables was analyzed, and the corresponding design strategy was proposed. The paper discovers that students' favorable sentiments toward smart library services might be influenced by a variety of factors, including information quality, system quality, perceived usefulness, perceived behavioral control, subjective norms, and behavioral attitudes. The smart service design of university libraries should focus on improving the quality of smart information service, improving the quality of smart system service, paying attention to the smart subjective norms of wisdom and optimizing the user experience scenarios.