In order to effectively carry out the education of mental health and sense of happiness, this study aims at investigating the circumstances of 516 students’ subjective happiness and mentality, using the questionnaires The Satisfaction with Life Scale （SWLS） composed and Symptom Check list 90（SCL-90）.The result shows that there is a significant negative correlationship between 516 subjects’ scores of SWLS and SCL-90 whereas there is a positive correlation between sense of happiness and mental health.