Throughout the world, most people who live in towns of less physical activity. The world population is growing, yet people than unhealthy foods and high-volume use. So, the improper composition (low physical activity and unhealthy foods), uncontrollable increase in the prevalence of diabetes in the world. Diabetes is one of the most common diseases of the modern era of sugar metabolism in the body occurs. Are two types of diabetes: insulindependent and non-insulin dependent diabetes or insulin is low or even no insulin or insulin receptor sensitivity is reduced and people with insulin resistance are generally. People with diabetes are exposed to a variety of injuries, such as retinal damage, kidney damage, damage to the nervous and cardiovascular disease are. The effect of physical activity in the prevention, control and treatment of diabetes, has been accepted by many researchers. The research shows that regular exercise increases glucose transporter protein and thus facilitates the entry of glucose into the body cells, especially muscle cells. On the other hand, especially the large muscles twitching muscles also facilitate the entry of glucose into muscle cells are. This will consume more glucose at the cellular level. Therefore, we aerobic activities like walking , running, swimming and cycling , low to moderate intensity for 20 to 90 minutes 3 to 7 times a week at the right time of day with respect to medical care as a convenient and low- cost device can be used for the treatment and control of diabetes . Therefore, due to the extremely important topic of diabetes, the present study examined the role of exercise in the control and prevention of Type I diabetes were studied.