Emergency management is an important part of the modernization of the national governance system and governance capacity, and it is also the top priority of dealing with various major risks. Based on the theoretical framework of the policy paradigm, the content analysis method is used to analyze the emergency management policy texts issued by the central level since 1949, and to sort out the discourse system and paradigm change process of emergency management since the founding of New China. It can be seen that emergency management in my country has gone through three stages from passive management to preventive management to standardized management. In these three different stages, policy issues, policy objectives and policy tools also show different characteristics of the times. In the context of a risk society characterized by high uncertainty and complexity, resilience governance has become a new trend in emergency management policies and an objective requirement to consolidate the national emergency management system.