Considering the emergence of recent network security threats, this article presents network security features and the current situation. Updated attack methods, enhanced attack technology, and expanded attack scope have changed emergency work. Some problems exist in emergency management of the status quo; the core technology and security assurance are relatively backward. Learning from the emergency response system in traditional areas in order to improve current emergency technical measures becomes an important part of network security. In this paper, the author proposes a multi-linkage elimination method that can mobilize system strength and protect against network threats based on the system and the mechanism.