Abstract:  In recent years,the frequently taking place of group events is in fact the result of non-institutionalized citizens’ participation.The occurrence of triggering events,transmission and spread of rumors,the use of problem technology and its retreat after the achievement of objective,which constitute the operational mechanism of group events.In order to resolve group events,it is necessary to open institutionalized channels,achieve non-institutionalized citizens’ participation into institutionalized citizens’ participation,and the group events will become the normal citizens’ collective action.

Key words: group events;non-institutionalized citizens&rsquo, participation;institutionalized channels