In the big data era of information explosion, information has become the most valuable resource, and information management has become the core work. At the same time, the increase in the amount of information has also brought new challenges to information management, which must rely on computer application technology. With the rapid development of computer technology in China, the technical level of software and hardware has been improved, which has brought more convenient means and tools for information management. This paper will focus on the integration of computer application technology and information management.