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目的:了解2020年辽宁省甲型病毒性肝炎高发疫情原因,提出控制建议。方法:收集法定报告传染病疫情中辽宁省甲肝疫情资料和已有监测数据并结合现场调查，综合开展流行病学分析。结果:2020年1—3月辽宁省共报告甲肝病例1 460例，较去年同期（871例）上升67.62%。病例主要集中在丹东和大连，2个市的发病数占病例总数的73.35％。发病年龄以30~49岁为主，占病例总数的76.16%，男女性别比为1.92：1；发病职业以农民和家务及待业人员为主，分别占42.88%和32.88%。结论:应该采取健康宣传、漏种儿童及时补种、重点人群疫苗接种的综合防控措施，并建立多部门联防联控的防控体制，降低甲肝发病率。“,”Objective:To understand the causes of high incidence of hepatitis A in Liaoning province in 2020 and to provide suggestions for the control measures.Methods:Integrated epidemiological analysis was performed based on the data of hepatitis A collected from notifiable disease reports in Liaoning province and from currently available surveillance results, with the combination of field investigations.Results:A total of 1 460 cases of hepatitis A were reported in Liaoning province from January to March 2020 with an increase of 67.62% compared to the cases (871 cases) in the same period of last year. The cases were mainly reported from Dandong and Dalian. The cases in the two cities accounted for 73.35% of the total cases. The age of onset was mainly 30-49 years old, accounting for 76.16% of the total cases, and the male to female ratio was 1.92 : 1. The occupation of the case was mainly farmers, houseworkers and the unemployed, accounting for 42.88% and 32.88%, respectively.Conclusions:Integrated prevention and control measures, including health promotion, timely supplemental vaccination for un-vaccinated children and vaccination of key groups should be implemented. The multi-agency joint action mechanism for prevention and control should be established to reduce the incidence of hepatitis A.