The purpose of this study was to find the relationship between health-related fitness and life-style of college men. The subjects were 93 students in the National Taiwan University. The approach was utilized for the life-style questionnarie that included daily mainly activities and exercise habits, and health-related fitness were measured. The results were concluded as the following: (1) There is a significant correlation between healht-related fitness and daily mainly activities, but it was not meaningful. (2) A comparison of healty-related fitness among lifestyle, exercise habits and degree of exercise were significantly different only on one of the items between two groups. This indicated independent variables didn't have much effect. (3) A significant correlations between pass the criterion of health-related fitness and exercise habits. The training group was significantly superior ot sedentary group at the percent of pass criterion.