The purpose of this study was to test the effect of physical exercise using home training on psychological health in COVID-19. The participants were 113 university students, 56 in the experimental group and 57 in the control group. All the students participated in the home training program consisting of warm-up, main, and finishing exercises for three months. They administered three instruments, Stress scale, CES-D, and STAI. The results of this study were as follows: First, there are significient difference in stress between the experimental group and the control group. Second, there are significient difference in depression between the experimental group and the control group. Third, there are significient difference in anxiety between the experimental group and the control group. The implications of this study were physical exercise through home training is effective in reducing stress, depression, and anxiety. Based on the results of this study, it is necessary to conduct researches according to the level of athletic ability of students and their preferred home training programs.