Objective: To observe and investigate the cause and the prevention measures of sport-specific training in track and field athletes ankle-joint injury, thus to provide a scientific basis for sports injury prevention and treatment. Methods: We randomly selected 200 track and field athletes in a school of grade 2013 and 2014 total; using statistical methods to track and field athlete injury occurrence are analyzed. Results: Through the investigation and analysis, a total of 65 athletes in sports injury, the incidence of sports injury was 32.5%, the injury has something to do with age and sports life of athletes, but there was no statistically significant difference, P >0.05; The part of the sports injuries are mainly ankle and thigh muscle, 35.38% and 30.77% respectively; The body fatigue, poor physical quality, technical master is a major cause of injuries are skilled. Conclusion: In order to reduce sports injuries, and enhance the life of the movement of athletes and sports ability, in the process of athletes training and exercise in the future, pay special attention to prolong athletes preparing activities, improve the standardization of the action, reduce the technical error and correct planning exercise.