In 2018，the safety accidents of highly aggregated tourist crowds （HATCs） in China are at a high rate，accidents occur frequently，and the safety situation is not optimistic. Accidents are distributed spatially and temporally，so it is difficult to prevent. Therefore，the control and management should not be underestimated. Because of the complexity of security management of HATCs，the co-construction and co-governance effort cannot be ignored. Accidents distribution characteristics of space and time of HATCs are analyzed，this paper found that there is a certain spatio-temporal concentration of HATCs，as in the “10.1” golden week，mountain scenic area. The safety of HATCs is influenced by personnel，facilities，environment and management，and other multiple factors mutual influence. Looking forward to 2019，HATCs will develop towards the direction of normalized frequency，risk diversification，intelligent crowd management，personalized safety management，etc. It is necessary to further strengthen the risk prevention ability，enhance the monitoring and early warning，build a comprehensive management system，and strengthen the ability of post-event adjustment.