中文摘要：

群体性事件指部分群众与当地党政部门或强势社会集团的对抗性冲突。是当下我国典型的集群行为。社会心理学对集群行为动员机制的研究主要包括群体相对剥夺、群体认同、群体（愤怒）情绪和群体效能；对集群行为组织机制的研究主要包括速生规范、谣言和去个体化。其中，群体愤怒和群体效能既属于动员机制，同时又在组织机制中发挥作用。这些因素之间有待于进一步整合，以期对现阶段我国社会频发的群体性事件的心理因素进行解释和探讨。

英文摘要：

Mass incidents, which refer to the conflicts between certain civilians and local administrations, are typical collective action （CA） in China. In social psychological field, the motivational mechanism of CA includes research on group relative deprivation, group identity, group-based anger, and group efficacy. Meanwhile, the organizational mechanism of CA includes research on emergent norm, rumor and de-individuation, group-based anger and group efficacy belong to both motivational and organizational mechanism. These psychological factors are expected to be further integrated to discuss and explain mass incidents in China.