The purpose of this study was to investigate the effect of aerobic exercise intensity styles on reduction of bodyfat, cholesterod, and triglyceride. Subjects of 18 women divided in two group(60％VO₂max Exercise group : 9women, 70％VO₂max Exercise group : 9women). All subjects measured ％bodyfat, cholesterol, and triglyceride level before and after 6-week exercise. The measuring of ％bodyfat used BodPod(U.S.A). and the analysis of cholesterol and triglyceride level EKTACHEM DT Ⅱ(U.S.A). The result of this study were as follows; Totally, the 70％VO₂max Exercise group was more effective than the 60％VO₂max Exercise group in this study. This results show a proper high intensity exercise is more effective than mid or low intensity exercise. A 70％VO₂max Exercise group was significant in ％bodyfat, but a 60％VO₂max Exercise group was not significant. The cholesterol level was not significant both group in just 6-week aerobic exercise. TG level was reduced both group, but it was not significant both group. As a result of this study, there are many different exercise to reduce bodyfat, or the change of cholesterol and TG level, and it is needed more longer time to get an effect of exercise. In addition, it is suggested that walking or moderate intensity jogging recommend to all people, but adult disease patient is recommend walking at least about 40minutes in three or 4 times a week.