This article used self-reporting inventory, self-test questionnaire, and other methods, chose four vocational schools in Shanghai for comparing experimental study of mental health, conducted experiments on experimental group and control group, and analyzed the current mental health of young students in Shanghai. It shows that the sunshine sports could significantly improve the students' mental health. The conclusion is that carrying out sunshine sports in vocational school extensively plays an important role in promoting mental health of young people in school. But some of the vocational schools in Shanghai in carrying out sunshine sports need to be improved. (Contains 3 tables.)