With the rapid development of science and technology, the computer has been widely used in people's life and work in all aspects with bringing convenience to people's lives at the same time, and it is also gradually changing people's way of life, such as computer office, email, video chat and so on. However, the ensuing network security problems also pose a great threat to people's life and work. Therefore, how to ensure the information security of computer network has become the main problem faced by people, this paper mainly discusses and researches on the security of computer network information and protection measures to provide theoretical support for the computer network information security. Since twenty-first Century, the world economy has been developing rapidly. As a new technical means, computer network technology has been widely used in all aspects of people's life and work. The computer network technology brings convenience to people's life and work, at the same time, it has brought great hidden dangers to people's information security, and some hackers have a bottom line and prying privacy problems caused by the leakage of personal information is not in every hour and moment threatening people's personal and property safety. Therefore, to find out the security problems existing in the computer network, and then find out the appropriate measures to solve the problems is the most effective way to solve the network security problems.
