| With China’s rapid economic development, people’s living standard has improved to some extent. However, the widening income gap caused some vulnerable groups social psychological imbalance and the sense of relative deprivation. In the current reform of special development period, led to the group events belongs to the internal contradiction among the people, makes the people’s life and property significant damage, become the harmonious development of the society unstable factors. Therefore, how to prevent and handle mass incidents during the current and future is a major theoretical and practical problem need to solved. Correct understanding of the mechanism of mass incidents and effective prevention strategies,build a relatively reasonable mass incidents prevention system, effectively to prevent mass incidents scale, and minimize the negative consequences of mass incidents, advantageous to enhance social stability and harmony, and promote the healthy development of our social economy.The author mainly from four parts to discuss the related problems of group events. The first part of the system about the origin of the problem and the theory of domestic and foreign scholars. The second part from the concept of group events, such as the nature and forms of mass incidents described in the theoretical basis;The third part analyzes the status of group events and the harms to the society and the reasons;The fourth section focuseson the reasons for a balanced revenue system, and clear communication channels and other measures to actively prevent and reduce the occurrence of mass incidents. |