In the course of the construction of college education, library as the storage warehouse of college information, strengthen the construction of library information has become the trend of The Times. Based on this, colleges and universities must combine the big data technology in the new era, deepen the reform of university libraries, and comprehensively strengthen the information construction of libraries. This paper describes the basic meaning of big data, studies how to integrate big data technology into the information construction of libraries at the present stage, points out the main problems in the management of university libraries at the present stage, carries out an in-depth study on the construction path of university libraries under the background of big data, and puts forward relevant suggestions based on the current situation, in order to provide references for the information construction of libraries.