In view of the contradiction between the growing psychological recovery needs of university students and the limited access to restorative natural environments,wood provides a solution as an ideal material for biophilic design.Using the relevant theories and methods of environmental psychology,this paper probes into the principles of psychological benefits of wooden interior spaces and confirms key aspects involved.The study has proved that students have high expectations for wooden interior spaces on campus,and found a higher audience preference for spaces with wooden structures.Furthermore,it has been found that increasing the level of wood structural change can significantly improve the naturalness,preference,and restoration likelihood of indoor spaces,and has the best psychological gains when applied simultaneously to beams,columns,and roofs.Finally,suggestions are put forward for the wood-based design of interior spaces in universities.