Objectives This study aimed to investigate the effect of yoga based on biorhythm theory on the balance and selective attention in the older women. Methods & Materials A total of 35 older women with mean (SD) age of 61.1(2.8) year were randomly assigned into three groups: yoga based on biorhythm (n=13); yoga (n=13); control (n=11). Static and dynamic balance tests and Vienna system test were applied to measure the study variables. COG test was used to measure the selective attention. One-way ANOVA test was used to analyze data followed by post-hoc Tukey test. Results The results suggested that both motor and cognitive performance, including balance and selective attention were improved significantly (P≤0.05). Conclusion Given the physical and mental weakness of elderly women, practicing yoga exercises are highly recommended in the elderly.