Social anxiety disorder is a condition in which people become wary of strangers when they are in unfamiliar or socially threatening situations. With the increasing pressure of life and study, more and more students suffer from social anxiety disorder. If this negative psychological emotion can not be improved in time, it will even cause extremely serious consequences.

Physical education in colleges and universities is one of the effective ways to promote students’ physical and mental health. Therefore, this study from the perspective of psychology makes an in-depth analysis of the influence of college physical education on students’ social anxiety disorder. The experiment randomly selected 70 students from a university to make statistics on their social anxiety disorder before and after the physical education intervention and compared their self-rating anxiety scale (SAS) before and after the intervention. SPSS 23.0 statistical software was used for data processing.

The score of SAS scale of students before intervention had no statistical significance (P>0.05), but the score of SAS scale of students after intervention was higher than that before intervention, and the difference was statistically significant (P<0.05). It shows that physical education in colleges and universities can improve social anxiety disorder significantly.

With the support of psychological theory, physical education in colleges and universities can improve the frequency of communication between students and others through physical activities, so as to promote communication between students and effectively improve their social anxiety disorder.