As the pandemic is under regular control，local tourism markets have been launched，and the number of tourists has been increasing. In 2021，the overall situation of tourist aggregation safety in China is not optimistic，which is affected by the interaction of human factors，environmental factors，management factors，facilities factors and other factors，and the overall safety accident types are complex and diverse. At the same time，the combination of the risk of tourist aggregation and the instability of the COVID-19 situation has made safety prevention and control more difficult. Through the case analysis，it is found that the tourist aggregation safety accidents present the characteristics of complexity of incentives，space-time contingency，risk diversity and so on. Looking forward to 2022，the risk of novel Coronavirus imported from abroad and continued local transmission will continue to exist，and the risk of tourist clustering will develop towards normalization，relative concentration in time and space and diversification of causes. It is suggested that the prevention and control of the epidemic should be prioritized in terms of the prevention and control system of the normal epidemic，the prevention and control of targeted points，and the prevention and control of the epidemic risk in the tourism industry. Re-establish the awareness of risk prevention and control，and implement pre-assessment of aggregated risks；We will strengthen coordination among the three sectors，and establish a risk prevention and control mechanism for clusters.