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目的:分析湖北省一起诺如病毒感染性腹泻暴发疫情的流行因素，为制定防控措施提供依据。方法:采用现场流行病学的方法进行调查，运用描述性流行病学方法、病例对照方法对调查数据进行分析。结果:本次暴发共涉及病例181例，首例病例于4月10日16时发病，发病高峰集中在4月11日12时至24时（92例，占全部病例的51.00%），食用园区小卖部售卖的冰淇淋是本次暴发的危险因素（n OR=5.03，95%n CI：2.62~9.51）。n 结论:该事件为1起由园区自来水管网铺设不规范、小卖部从业人员卫生安全意识薄弱导致的诺如病毒感染性腹泻暴发，应加强对公共场所水网的监管以及对公共场所服务人员的健康宣教工作。“,”Objective:To analyze the epidemic factors of an outbreak of infectious diarrhea caused by norovirus in hubei province, so as to provide the basis for formulating prevention and control measures.Methods:Field epidemiological method was used in case investigations. The descriptive epidemiological method and case control method were used to analyze the investigation data.Results:A total of 181 cases were involved in the outbreak. The first case occurred at 16:00 on April 10, and the incidence peak was concentrated from 12:00 to 24:00 on April 11 (92 cases, accounting for 51.00% of all cases). Eating ice cream from the canteen in the park was the risk factor for the outbreak (n OR=5.03, 95%n CI: 2.62-9.51).n Conclusions:This incident was an outbreak of infectious diarrhea caused by norovirus because of irregular water pipe network laying in the park and poor health and safety awareness of employees in the canteen. Supervision of water network in public places and health education for service workers in public places should be strengthened.