This study analyzed the comparative effect of Cooper exercise and continuous aerobic exercise for 10-12-year-old children with obesity for 60 minutes daily, three times a week for 12 weeks. The selected research participants were 76 children consisted of 54 boys and 22 girls with the ％fat rate over 30％ and were checked for the BMI, and ％fat for the obesity index and blood lipid component for TC, TG, HDL-C, LDL-C and TC/HDL before and after the program, A 12-minute running was exercised for cardiorespiratory endurance, The intensity level of HRmax 55％-65％ with the Karvonen formula measured the target heart rate for the exercise, The continuous aerobic exercise was performed for 40 minutes during the main exercise, and Cooper exercise was carried out by having the research participants carry a sand bag weighing 5％ of theft body weight, A two-minute dynamic break was allowed after every 12-minute exercise. The repetitive measurement value for the pre- and post-programs was analyzed for the changing factors among the groups by using the comparative t-test analysis. A significant decrease occurred between the two groups as the result of the exercise program, weight, changes in the rate of the body formation for obesity; however, no statistical significance was resulted among different exercises, Further, the LBM was increased for every group but no statistical significance was supported, All the comparative groups showed a significant increase; however, the LBM was not significantly increased according to the statistics. The change in the blood lipid component significantly decreased for both groups; but it was significantly increased for the HDL-C, For the case of the comparative group, a significant increase was resulted; while a significant drop was evidenced for the HDL-C. For the change in the cardiorespiratory endurance, statistically significant increase was observed for the continuous exercise group and the Cooper exercise group while the comparative group showed no meaningful changes. As a result, an exercise program can significantly improve the changing factors for body shape and body formation of the children with obesity, and effectively play a role for the diseases related to arteriosclerosis and coronary heart disease. No significant difference between the two exercise groups entails a necessity for a long-term program when designing an exercise program for children with obesity, rather than a short-term program according to nutrient supply and exercise mode considering the fact that they are children in grow.