目的：调查亚丁湾护航官兵功能性胃肠疾病（FGIDs）的发病情况，并分析其相关影响因素及相应对策。方法采用整群方法，按照FGIDs罗马Ⅲ分类及诊断标准，调查任务官兵FGIDs的发病率，对其相关发病因素加以分析；探究相应对策。结果抽样调查官兵共268人,入组265人，FGIDs发病率为21.89%；其中FC为8.94%, FB为4.36%、FD为4.21%、IBS为4.38%；特战队员无发病；统计显示值更频度、高温高湿工作环境、吸烟、饮酒、长期饮用茶、咖啡是FGIDs发病的相关影响因素。结论长时间远洋航海导致亚丁湾护航官兵发生FGIDs，一定程度上影响到正常训练及作战任务，应采取相应干预措施降低其发病率。“,”Objective To investigate epidemic state of FGIDs among military troops who carried out anti-piracy mission at Aden Gulf, in an attempt to analyze related impact factors and according countermeasures. Methods In accordance with FGIDs RomeⅢcategorization&diagnosis criteria and by means of cluster sampling, FGIDs incidence in missionary personnel is studied, along with its related pathogenic factors being analyzed, so that corresponding strategies are explored and discussed. Results In a total of 268 individuals who were investigated, 265 of them were enrolled in the study. FGIDs incidence was 21.89%, including 8.94%, of FC, 4.36%of FB, 4.21%of FD, and 4.38%of IBS. A 0%of FGIDs incidence was found in the special forces. The statistical data revealed that related impact factors of FGIDs involved shift frequency, hyper-moisture and hyper-temperature environment, smoking, intoxication, as well as long-term tea and coffee intake. Conclusion Since long-term voyage leads to FGIDs emergence among anti-piracy troops at Aden Gulf, which poses effect at certain degree on normal training and operation task, corresponding interventional measures are suggested to be taken to decrease its incidence.