征地拆迁往往与暴力、自焚、群体性事件等危害公共安全事件相联系。做好征地拆迁工作既要重视群体性事件发生后应急处置的有效性,更须注重征地拆迁中可能危害公共安全事件防范机制的构建。本文在分析城市化进程中被拆迁农民与群体性事件发生内在机制的基础上,论述了被拆迁农民在拆迁过程中心理周期变化的四个阶段:抗拒感——焦虑感——忧伤感——浮躁感分别对公共安全的影响,并根据每一阶段被拆迁农民心理特征的差异提出防范相应公共安全事件发生的政策建议和具体举措。 Land expropriation and demolition are often associated with violence, self-immolation, mass incidents and other crimes endangering public safety. To do a good job in land acquisition and demolition work, we must pay attention to the effectiveness of emergency measures after mass incidents and pay more attention to the establishment of a mechanism for prevention of public safety incidents that may endanger land acquisition and demolition. On the basis of analyzing the internal mechanism of demolition peasants and mass incidents in the process of urbanization, this paper discusses the four stages of psychological cycle changes of demolished peasants during demolition: resistance - anxiety - sadness - Impetuous sense of public security respectively, and according to the differences of the psychological characteristics of the peasants to be demolished at each stage of the policy recommendations and specific measures to prevent the occurrence of the corresponding public security incidents.