Background: The study was to examine the effects of aerobics dance on body composition and flexibility in sedentary women. Methodology: To attain these purpose 45 sedentary women were selected randomly, from Thamarassery Taluk Kozhikode, Kerala, India. The participant age ranged between 36 and 44 years. They were simplified into three groups SAG (n=15), FAG (n=15) and control (n=15). The tool used for the purpose was skin fold caliper utilized to measure body composition and used sit and reach test for flexibility. The test was conducted Pre and post training programme on all the three groups. The SAG and FAG group underwent a structured training programme three times a week for twelve weeks. Analysis of Variance (ANOVA) was used for analysis of the results. Result: Following the twelve weeks of structured training programme for SAG and FAG group’s significant difference was found in body composition whereas, no significant difference was found in the control group. Twelve weeks of structured training programme for SAG and FAG and control group’s there is no significant difference was found in flexibility. Conclusion: According to the obtained results, it can be concluded that both SAG and FAG programme leads to significant improvement in Body composition but SAG have relatively more effective to improve Body composition as compared to FAG group. Whereas no significant difference was found in flexibility for any three group.