The purpose of this study is assess the physical and motor abilities of young adolescent gymnasts, assess the relationship between body composition parameters with the motor abilities and to establish the pattern of body type of young male and female gymnasts. The study was composed of 24 male and 28 female gymnasts who were aged between 5-17 years. Anthropometric, body composition parameters, motor fitness & strength parameters, lung function parameters and somatotyping were studied. The weight of male and female gymnasts of present study was higher in male but lower in female than sedentary children and it was also significantly lower than international values. The handgrip strength was also significantly higher in male and lower in female than sedentary children. The anaerobic power was significantly higher in male and female than sedentary children. The somatotying of present study was ectomorphic mesomorph. The height, flexibility, vertical jump, aerobic power were also significantly lower than international value. Significantly lower values of present study found in balance stork test, upper length, lower length extremity, shoulder width, elbow and knee diameter, vertical jump, flexibility & higher values found in wrist and ankle diameter than Iranian Junior gymnasts. The PEFR value of present study was also significantly lower than different sports. This study revealed that the physique and body composition pattern of junior gymnasts are different from there sedentary counterpart. Thus for the purpose of identification of talent and of developing a successful gymnasts, a suitable database for physique and physiological profile has to be established. Further improvement in motor abilities needs to be emphasized by adequate training and appropriate conditioning.