With the rapid development of internet plus in various fields, people's lives have been inseparable from the Internet. As the forefront of talent training and the production and application of new technologies and new knowledge, colleges and universities are facing increasing network security risks. The openness, concealment and virtuality of the Internet have brought great security risks to college students, such as personal information disclosure, electronic equipment being attacked by viruses, network fraud and so on. It is very important to further promote network security education in colleges and universities and build a network security defense line.

Network security means that the hardware and software of the network system and the data in the system are protected from being destroyed, changed or leaked due to unexpected or malicious reasons, and the system runs continuously, reliably and normally without interrupting the network service.

To maintain network security, we must strengthen network management and establish a network security monitoring and management mechanism;

The first is to build a network security management mechanism in colleges and universities. The network security management mechanism mainly includes technical information system security detection, risk demonstration, filing, state monitoring and emergency treatment after information system failure or attack.

The second is to build a network public opinion management mechanism in colleges and universities. Network public opinion management is specific measures such as monitoring and early warning, judgment and guidance, response and disposal, tracking and feedback of potential public opinion risk factors or public opinion information generated on the network. It is necessary to further improve the online and offline collaborative disposal mechanism of online public opinion, unblock online reporting channels, strengthen the construction of the supervision and governance system for teachers and students, enhance the joint prevention and control capabilities, and effectively resolve the network ideological security risks.