The purpose of the study is to search prevention factors of injury by analysing the current state of injury on the athletic career based on the research into the injury of men gymnasts participated in the 2011 92th National Athletics. As the result of research, the lower the athletic career, the more the training time and the number of training, thus there is much time gymnasts can be injured. The injuries have more occurred at the upper limbs than at the legs, and there are many serious injuries like the fracture. In case of the high-athletic career athlete, the injuries have occurred intensively at legs. Though the incidence rate of the fractures and ligament ruptures approximated each other, many symptoms of injury appeared according to add symptoms like disc. The lower the career the higher injuries have occurred at Rings and Parallel bars and in the case of high-career athletes at the Floor exercise, Pommel horse and Horizontal bar. Their incidence rate of injury is relatively high in training for advanced techniques and inherit. Regardless of the athletic career, injuries frequently have occurred in skill training and the incidence rate of injury in lading is highest.