The purpose of this study is to investigate the comparison of bone density, health-related fitness and total physical activity among postmenopausal women. 98 women were participated in this study, and they were divided three groups(24 normal(N), 37 obesity(O), 37 sarcopenic obesity(SO)) according to their body composition. The participants were measured bone density (T-score) and health-related fitness(cardiovascular endurance, muscular strength and endurance, and flexibility). In addition, they filled out international physical activity questionnaire. The % of FFM, % of body fat, BMI, and WHR were significantly different among three groups. In addition, O groups had higher bone mineral density than SO group. VO2max of N group were higher than that of SO and O group. The muscular strength and endurance(sit-up, hand grip strength, and back strength) of SO groups were significantly low as compared N groups. The total physical activity was different among the groups, and it was high in order of N, O, and SO groups. In conclusion, the increased physical activity may have positive effect on body composition, bone density, and health-related fitness among postmenopausal women.