Abstract: Crisis boundary refers to the implicit stipulation of the relationship between interests,rights and power in public crisis,which arises from the interaction and game of groups or organizations in the context of risk society.The diversity and alienation of risks in the process of modernization is an important inducement of interaction and game imbalance between subjects,which leads to the outbreak of focus events and promotes the emergence of policy windows.However, the mess of social order and norms caused by the outbreak of focus events is not illogical,and the confrontation among groups, organizations or structures around interests,rights and power is often expressed with the help of system and public opinion.This leads to the continuous turbulence,differentiation and reconstruction of the boundary,resulting in the disorder in the connotation of the boundary of interests,rights and power.We can build a public crisis model based on interest boundary,right boundary and power boundary.Governance and response should be made according to the boundary dimensions involved in the focus events.The more complex the boundary types involved and the higher the risk level,the more formal response is needed.

Key words: focus event, crisis boundary, public crisis, social stability