目的　研究守礁人员的心理应激状态及内分泌变化。方法　调查对象为 1 63名驻守在中国南海的守礁人员 ,均为男性 ,年龄在 1 8～ 3 8岁 ,大部分为中等文化水平。将他们分为两组 ,以上岛礁前 1周的人员为对照组 ,上岛守礁 3个月的人员为守礁组。采用症状自评量表对调查对象进行心理测评 ,并进行TT4、TT3、睾酮、皮质醇测定。结果　有 1 4 1 %～ 43 6%的守礁人员有轻度不良反应 ,2 5 %～ 1 1 0 6%的人存在较明显的心理健康问题。守礁组各项因子分、阳性项目数均明显高于军人常模和对照组。 49 1 %的人睡眠质量差。与对照组相比 ,TT4水平明显降低 ,睾酮、皮质醇明显增高 ,TT3无差异。结论　守礁人员的心理问题较明显。加强对守礁人员的心理卫生工作是十分必要的。 Objective To study the psychological stress state and endocrine changes of defensive staff. Methods The survey was conducted on 163 reef-keeping staff stationed in the South China Sea, both male and aged 18 to 38 years old, mostly of middle-class cultural backgrounds. They were divided into two groups, more than one week before the island reef as a control group, on the island defensive reef 3 months as a defensive reef group. Psychological evaluation was conducted on the subjects using the symptom checklist, and TT4, TT3, testosterone and cortisol were measured. The results showed that 141% to 436% of reefs had mild adverse reactions, while 25% to 116% of them had obvious mental health problems. Keeping reefs of the various factors, the number of positive items were significantly higher than the norm and the control group. 49 1% of people have poor quality of sleep. Compared with the control group, TT4 levels were significantly lower, testosterone, cortisol was significantly increased, TT3 no difference. Conclusion Psychological problems of defensive staff are obvious. It is very necessary to strengthen the mental health work of reef-keeping personnel.