Campus network monitoring is a big data analysis in order to ensure campus safety, like campus violence, carrying dangerous goods to school, etc., and campus safety issues related to the content of the chat through the big data can be identified. Campus network is a broadband multimedia network that provides teaching, research and comprehensive information services for teachers and students. First of all, the campus network should provide an advanced informationized teaching environment for school teaching and research. This requires: the campus network is a broadband, interactive and highly specialized local area network.