Information encryption is the most basic and core technical measure and theoretical basis to ensure information security. Information encryption is also a major part of modern cryptography. Information encryption is the most basic and core technical measure and theoretical basis to ensure information security. Information encryption is also a major part of modern cryptography. To ensure better continuity of the development of computer networks, it is necessary to develop towards the direction of network system management and security management and comprehensively improve the design. Computer network security management awareness, thereby effectively avoiding or reducing attacks by hackers and virus damage. The more advanced the network, the more important the security. In our daily work, we always regard the safe and stable operation of the system as an important task of information technology and take measures to ensure that.