Objective To realize the senior high school students’ condition of mental health. Method The mental health of 198 high school students was assessed by SCL-90. Use Hu Shengli’s inverestigations investigated the factor of effect mental health. Results 10.6 % of high school students have significant mental health problems

and 71.2 %have slight. Difference gender have significant difference. In the four factors affecting mental health in high school （school education

family environment

social and cultural

students themselves）. Since the test was discovered by the assessment: school education and students themselves have the greater impact

and the family environment

social and cultural impact relatively small. Conclusion Total high school student mentality general level of the health comes down to some extent comparatively in the past

the mental health of the boy students problem is more than that of girl students. Affecting the high school student mental health major factors are themselves and school education.