采用ＳＣＬ—９０症状自评量表对某铁路分局４６７名列车乘务员的心理卫生状况进行了分析。结果显示总均分、阳性症状均分、阳性项目数、九组症候群因子分、达到或超过中等严重程度的发生频数均显著高于对照组。经多元逐步回归分析，仅细菌总数和二氧化碳对列车乘务员心理卫生状况有一定影响，其原因多与工作环境的不良因素和工作性质有关。 Using SCL-90 Symptom Check List to analyze the mental health of 467 train attendants in a railway branch. The results showed that the average total score, the positive symptoms were positive, the number of positive items, nine groups of factor scores, reaching or exceeding the median severity of the occurrence were significantly higher than the control group. After multiple stepwise regression analysis, only the total number of bacteria and carbon dioxide have an impact on the mental health status of flight attendants. The reasons are mostly related to the adverse factors and the nature of the work environment.