Abstract： Objective To know and analyze the mental health status of the aviators.Methods The evaluation of the mental health status of the 1 158 aviators from the Chinese navy,army and air force was made by using the Symptom Check List 90 (SCL-90) and was compared with the norm of the Chinese military personnel,and then,the mental health status of the aviators was analyzed and evaluated.Results Except the scores of such factors as hostility,terror and psychoticism,the total scores of SCL-90 and the scores of various factors of the 1 158 aviators were all significantly higher than the norm of the Chinese military personnel (P ＜ 0.05).The detection results by SCL-90 showed that there were 792 aviators without symptoms,accounting for 68.39％,and there were 366 aviators with symptoms of different degrees,accounting for 31.6％.The overall SCL-90 evaluation results of the aviators from the navy,army and air force revealed that there were 84 aviators with one factor score of ≥2 or the total scores of ≥ 160,accounting for 7.25％,and there were 34 aviators with positive items of ≥43,accounting for 2.94％.As seen from the above,there were 118 in total,accounting for 10.19％.Statistical analyses showed that the one factor score of the naval aviators was significantly higher than that of the army and air force aviators (t =2.25 & 2.69,P ＜ 0.05).However,there were no obvious differences in the scores between the army and air force aviators (t =0.72,P ＞ 0.05).Conclusions The mental health level of the aviators was lower than that of the norm of the Chinese military personnel.The top three scores of various factors in sequence were compulsive symptoms,anxiety and depression,indicating that the mental health of the aviators was affected by many factors,including physiological,psychological and environmental factors,which were closely associated with the mental health status of the aviators.With this reason,close attention should be paid to the mental health of the aviators,so that the mental health level of the aviators could be further improved.