Abstract: Eighty students r anging from freshmen, sophomore and juniors who take the optional course of heal thy personality are selected as an experiment group. By using SCL-90 scale, the students conduct surveys before and after 32 periods respectively. Meanwhile, another optional class made up of 36 students is formed as a comparison group. T he result shows that the level of mental health will be improved after the educ ation of healthy personality. This research is significant in improving onward personality psychology.