Physical activity in patients after kidney transplantation has been reported as an important component of their quality of life. This study was carried out to explain different aspects of physical activity and exercise in renal transplanted patients. An extensive Medline search was carried out covering the period from 1989 to January 2006. Medline was searched through Medical Subject Heading database. Physical Activity, Motor Activity and Kidney Transplantation had been selected as main keywords. This search was covering human subjects and articles in all languages. A total of 21 articles selected for study. These articles study the physical activity status; exercise capacity and their importance in kidney transplanted patients.They also study the factors that influence exercise capacity in this patients and reveal some recommendations for exercise prescription in KT patients. These studies showed that KT patients have disturbance in tolerance to exercise and physical activity that may be due to pre KT status, post KT obesity or muscle damage due to glucocortycoid therapy. These articles also reveal that physical activity may reduce bone loss and may improve oxygen consumption, peak heart rate, maximum ventilation rate, blood concencentration, muscle strength and may correct the hyperlipidemia in KT patients.Total hemoglobin has been reported as main factor that influences positively exercise capacity in KT patients. Risk of hypertensive changes during exercise, especially in the patients who receive vasopressor medications such as Cilosporin and patients with cardiovascular risk factors has been reported as considerable factor. In conclusion these articles suggest programmed exercise for KT patients specially sub maximal aerobic activities. Strenuous physical activity should be undertaken with caution.