The purpose of study was to find out how high school male students’ mental health is differentiated according to their levels
of participation, fatness and fitness. 504 high school male students did survey to measure the levels of mental health and
participation for physical education classes and the results of PAPS were utilized to assess their fatness and fitness. SPSS 21.0
program was utilized for statistical analysis to see the levels of obesity, fitness and mental health among the very active, the
active and the ordinary groups (p.<.05). Results firstly shows that the more taller in height and better in fitness they are the
more active in PE classes, but the percentage of body fat is negative to the level of participation in PE classes. Secondly, their
active participation has negative relationships with somatization, compulsion, social sensitiveness, depression, anxiety, hostility,
fear, delusional disorder and psychoticism. Lastly, fatness and fitness do not differentiate the level of mental health among all
groups.