The purposes of this study were investigate the body posture stability and fall related physical fitness in elderly women. Sixteen elderly women subjects were participated in this study (n=16, mean age:72.63±2~79.38±3.46yrs, mean BMI: 25.03±2.83~27.99±2.78). They were divided into two groups (aqua exercise group, n=8, control group, n=8). Participants were tested before and after the study to measure body composition, lower body (strength, flexibility), agility, balance(static, dynamic), time up and go(TUG)and tandem gait for functional fitness, also the body posture stability and advanced balance ability(limits of stability) were measured Biorescure(RM Ingenierie Co, France) which has % quarterly sector(RF, LF, RB, LB). Aqua exercise training program was performed for 50minutes per session, 3times per week for 12weeks. Data was analyzed with ANOVA for repeated measures, t-test using SPSS ver 19.0 program. As a result, There were significantly changed between group and period on body weight, %fat, and WHR in aqua exercise group(p<.05,p<.001). Lower body strength, agility also significantly changed between group and period. However tandem gait was no significant. Limits of stability with eye closed status was significantly changed in aqua group. In conclusion, 12weeks aqua exercise training was positive effect of fall related physical fitness and postural stability excepted BMI, tandem gait. These result could recommend that aqua exercise also one of prevention program of fall risk factors for elderly women.