目的 总结不同阶段我国防治COVID-19暴发流行的经验，反思存在的研究问题，探讨今后在疫情新常态情况下如何进一步做好科学精准的防制工作。方法 利用世界卫生组织和我国报告的疫情资料、文献和网络报道综合评述。结果 分析全球COVID-19疾病流行概况，总结我国三个流行阶段的经验。通过反思，对国内在COVID-19治疗药物研究、核酸和抗体检测以及疫情报告病例的标准出现的问题提出了一些建议。结论 今后COVID-19境外输入引起的散发或集聚发病将会成为一种新常态。在疫苗主动免疫实施以前，做好个人防护，加强社区群防群控，阻止输入病例形成社区传播，将成为未来的新局面。

Objective To summarize the experience of prevention and control of COVID-19 epidemic in different stages in China,to reflect on the existing research problems and to explore how to do scientific and accurate prevention and control measurements in the new normal situation of COVID-19 infection. Methods The statistical data,literature and website reports from WHO and China were reviewed. Results The pandemic situation of COVID-19 in the world was analyzed,and the experience of three epidemic stages in China was summarized.Some suggestions on the clinical drug researches,nucleic acid and antibody detection and case notification of COVID-19 in China were put forward. Conclusion In the future,COVID-19 events will become a new normal due to the spread or clusters of cases caused by imported patients.Before the implementation of active immunization,it will be a new future situation to do personal protection,strengthen prevention and controlling the transmission of imported cases in the community.