The development and application of computer information technology is based on the major premise of the network security environment. To achieve the sustainable development of computer information technology, it is necessary to establish a safe and stable network environment. The advancement and development of network security technology is driven by computers. Information technology is developed based on the problems presented in the development process. From this point of view, there is a complementary relationship between the development of computer information technology and network security. This article is a research on the synchronization and coordination between the development of computer information technology and network security, and aims to promote the development of computer information technology through the establishment of a network security environment.