The purpose of this study was to improve the quality of female life and to present the basic source through pelvic floor muscles exercise. Followings are the changes of vaginal internal pressure in climax, average vaginal internal pressure, vaginal contraction duration and satisfaction of sexual life after applying 12 weeks' exercise program. First, exercise group showed that the maximum vaginal internal pressure was significantly higher than before exercise, but control group did not show a significant difference. Second, the average vaginal internal pressure did not show any difference between the exercise group and control group. Third, exercise group showed that the vaginal pressure duration was significantly longer than before exercise, but control group did not show a significant difference. Fourth, exercise group showed that the desire was significantly higher than before exercise, but control group did not show a significant difference. Fifth, exercise group showed that the arousal was significantly high after exercise, but control group did not show a significant difference. Sixth, as for the lubrication, exercise group did not show a significant difference, but control group showed it significantly high after exercise. Seventh, exercise group showed that the orgasm was significantly high after exercise, but control group did not show a significant difference. Eighth, exercise group showed that the arousal was significantly high after exercise, but control group did not show a significant difference. Lastly, exercise group showed that the pain was significantly high after exercise, but control group and the result of post-test between groups did not show a significant difference. Above results proved that the pelvic floor muscles exercise has an effect on the female vaginal pressure, vaginal contraction duration and satisfaction of sexual function, but additional researches might be necessary with more subjects.