Purpose: The aim of this study was to evaluate the effects of lifestyle modification program on body composition and metabolic syndrome makers, depression in obese postmenopausal women. Method: The research design of this study included a non-equivalent control group pretest-posttest design. The lifestyle modification program was administered twice a week for 12 weeks the experimental group, whereas the control group had no program. The experimental group consisted of 22 obese postmenopausal women while the control group contained 19 subjects. The study also attempted to measure the effects of the program on body composition, metabolic syndrome markers, and depression in obese postmenopausal women. The data were analyzed by descriptive statistics and a t-test using the SPSS/WIN 17.0 program. Results: After participating in the lifestyle modification program, the experimental group showed statistically significant decreases in systolic pressure, diastolic pressure and depression, but no change in body composition. Conclusions: The result of this study show that the lifestyle modification program had a significant impact on obese postmenopausal women. In the future, it is necessary to offer more tailed program for a longer period.