This study clarified the effects of exercise habits on the body composition and physical fitness of general male and female university students in 2021, who are forced to refrain from activities due to the COVID-19 crisis. The subjects were 158 male students (19.0 ± 1.0 years) and 30 female students (19.7 ± 1.3 years) who took physical education and lectures in the 2021 period. The body fat percentages (%Fat) by the skinfold thickness（SFT） method and the bioelectrical impedance analysis (BIA), and physical fitness were measured. Regarding exercise habits in 2021, 63.9% of males had "yes(did exercise)" and 50.0% of females, and the exercise frequencies were 2.60 ± 1.37 days / week and 2.00 ± 1.26 days / week, respectively (ns). Among the exercise events,males had the most ball games (volleyball, soccer, etc.) (55.4%), and females had the most aerobic exercise events (jogging, dance, etc.) (72.7%). The SFT and %Fat by SFT method of males in 2021 were significantly lower than those in 2020, while the %Fat by the BIA method of females in 2021 was significantly higher than those in 2020. In addition, the %Fat by SFT method of males was significantly lower in the exercise habits group (14.2 ± 3.2%) than in the non-exercise habits group (16.1 ± 3.6%) (p <0.05), but for females. On the other hand, the number for CS-30 test of males and females in 2021 were significantly higher in exercise habits group than in the non-exercise habits group. It was suggested that, regarding the body composition and physical fitness of university students during COVID-19 crisis, males with exercise habits tended to have a low body fat percentage, and relatively higher physical fitness, but females had less that effect even if they had exercise habits.