Background: Diabetic nephropathy is one of the major microvascular complications of diabetes which eventually manifests into end-stage renal disease. One-third of the diabetic population is prone to develop nephropathy and it represents the major cause of morbidity and mortality. Objective: The purpose of this study was to find out the effect aerobic training on urinary albumin excretion protein in type 2 diabetes mellitus. Methods: the study was conducted on twenty patients, their age ranged from 45 to 55 years. They participated inmoderate aerobic exercise (50-70%of MHR) for 30-40 minutes on electronic bicycle ergometer, 3 session per week for 12 weeks in addition to their medical treatment. Micro albumin urea, HBA1C, Fasting blood glucose, blood pressure was measured before and after the study. Results: statistical analysis showed a significant improvement (decrease) in HbA1C By 1.26%, Fasting blood glucose by 5.21%, Systolic & diastolic blood pressure by 4.78% &6.79% and albuminuria level by 9.68%. Conclusion: it is recommended for patients of diabetic nephropathy to practice aerobic exercise to avoid diabetic complication
