The university library has dual attributes. One is the management attribute. The object of management is the library materials. The other is the service attribute. The service object is the majority of teachers and students in the school. In the context of deepening the reform of higher education, the library needs of college students are more diversified. This is also one of the necessary measures for the transformation and development of university libraries under the new situation. The arrival of the era of big data has provided technical support for libraries to carry out personalized services. Relying on large data analysis and obtaining students 'information needs, book services are made more quality and personalized.