|（Department of Physical Education，Jiangmen Polytechnic，Jiangmen 529000，China）
Abstract: In order to gain an insight into the mental health condition of students in polytechnic institutes in Jiang-men, the author used the SCL-90 symptom self evaluation form and the questionnaire survey form of mental health reaction before and after physical exercise to carry out the investigation. Having compared and analyzed the mental health condition of advanced and middle polytechnic students, the author revealed the following findings: the scores of various SCL-90 factors for students in Jiangmen Polytechnic Institute are higher than normal scores nationwide; there is a significant difference in mental health level between middle polytechnic students and advanced polytech-nic students; the adverse mental reaction of middle polytechnic freshmen and sophomores is significantly intenser than that of advanced polytechnic students; the order of the mental health condition of advanced polytechnic stu-dents is arranged from poor to good as follows: sophomores, freshmen and juniors. The author drew the following conclusions: using various means to actively participate in regular physical exercise can prevent students from hav-ing mental problems; physical exercise is an effective means for treating mental diseases.
Key words: scholastic physical education；physical exercise；advanced polytechnic student；mental health