The school has several libraries. As the school's administrative library, the main library, Langson Library, shoulders the heavy responsibility of preserving school files and archiving students' papers. At the same time, it has a considerable number of rich books with 3 million volumes and 37, periodicals. The library is a comprehensive library containing literature, audio-visual materials in humanities, arts, education, social sciences, biological sciences, engineering sciences and other disciplines. Extended materials

In addition, UCI also has a professional library of Francisco J. AyalaScience Library and Grunigen Medical Library. And professional libraries such as Libraries Gateway Study Center and Law Library.

All libraries are equipped with complete free internet, computers, printing and photocopying facilities, and all have study rooms, meeting rooms for academic discussions and multimedia laboratories. In addition to the main digital laboratory of the Department of Computer Engineering and Science, every library and student center of UCI, as well as the multi-functional computer laboratory and Smartclassroom included in it, are open 24 hours a day.

UCI library has no restrictions on the number of books and albums borrowed by teachers and students, and the borrowing time is as long as 3 months. UCI has a huge number of electronic resources and document stacks, but if there are documents that cannot be obtained in UCI library, UCI and other famous university libraries in the University of California system, such as UC-Berkeley and UCLA, will be fully networked and shared, and the 15 million-volume' resource library will certainly meet the needs of any students and professors. UCI library also provides book delivery service, and the required materials will be sent to UCI from any school in the University of California system in 3-5 days.

UCI's student center provides a large number of laboratories for academic research, an auditorium and two food courts, so it is one of the most lively campus life and learning centers. Other places popular with students include Aldrich Park, The Cross-Cultural Center and the Locus, and every sunny square in the park-like school.