Abstarct: The purpose of present study was to determine Effect of exercise volleyball, basketball and football on body composition and physical fitness of selected factors in adolescents 14 to 17 years of practice in Sabzevar city. . For this purpose, the athletes 14 to 17 years in three sports, football, basketball and volleyball in Sabzevar Ultimately, 75 people were selected on a voluntary sample. Before physical fitness tests, anthropometric measurements were taken. The tests physical fitness include of length jump, Sargent vertical jump, sit- ups in one minutes, pull- ups in one minute, 4 at 9 m, 30 m speed and 20-m shuttle run test were taken. For comparison of means used ANOVA and post hoc Bonferroni test. Significant level was P≤ 0.05. The results showed no significant difference between the three groups of football plaxyers, volleyball and basketball are all anthropometric characteristics. The difference between the three groups of football, volleyball and basketball in weight, body fat percentage, fat mass and lean mass, there is no significant difference between the three groups in body mass index does not exist. The difference between the three groups of football, volleyball and basketball only variables without lactic acid anaerobic power, speed, agility and aerobic power there. While no significant difference between the groups in the variables upper body muscular endurance, muscular endurance and explosive power lower body. Athletic couch can be used the results of this study to design training programs, the selection of plaxyers and talent identification in various sports.