Based on Participatory Design to "User Participatory Design". PD is an important method in anthropological research. The PD theory and method are introduced into the design of space and service in American university libraries, which realizes the deep interaction between Library and users. PD's methods and theories are used in the research project of the ALC of Purdue University and native student needs of University of Oklahoma library. The establishment of interdisciplinary project team, the adoption of multiple data collection methods, and the inspiration to ensure the active and full participation of the users have provided experience for the development of the PD project of the University Library in China.