Abstract: The physical effects of underwater exercise includes muscle relaxation, decrease of muscular spasm and pain, increase of joint moving range and muscular strength and improvement of stability and balance of body. This study aimed to investigate the changes in body shape and visual analogue scale of elderly women after 12 weeks of aqua rehabilitation exercise. The research subjects were elderly in 70s living in Korea who do not exercise regularly do not take dietary supplement and wish to attend 12 weeks of aqua rehabilitation exercise program. The aqua rehabilitation exercise was performed for a total of 48 sessions 4 times a week for 12 weeks each of 60 min. Walking, stretching, shaking, jumping, jogging were performed in order focusing on the spine in which low pressure was started and intensity was increased to optimum pressure. Body shape changes (Bodystyle S-8.0: Korea) was used for body shapein which they were measured as shoulder, pelvis, leg length, balance of right and left. VAS (Visual Analogue Scale) was used for level of pain in which they were measured as subjective pain score. PASW 18.0 statistical program was used on the pre-test and post-test data to identify the effect of 12 week treatment. Descriptive statistics was suggested for each measurement period and two way 2-way repeated ANOVA was applied to find the interaction of the treatment effect. The significance level was set to be 0.05. First, shoulder angle showed significant interaction effect between EG and CG with p<0.05. Pelvis angle showed significant interaction effect between EG and CG with p<0.05 leg length showed significant interaction effect between EG and CG with p<0.05. Balance of right and left showed significant interaction effect between EG and CG with p<0.05. Second, VAS showed significant interaction effect between EG and CG with p<0.001. Aquatic exercises make people to work out with the resistance in water and ultimately strengthen the muscular strength of muscles around the joints. Furthermore, the underwater exercise program will help the participants to effectively use the resistance underwater and actively bring on euphoria to decrease pain.