Objective: To study epidemiological characteristics of the military training injuries (MTI) during parachuting training of the air force and sea training of the navy. Methods:The subjects of this study were 1382, including 971 navy soldiers (300 recruits and 671 soldiers) and 411 for force recruits. Navy: Each of injured soldiers was investigated by the trained battalion surgeon; Air force: When the parachuting training finished , two doctors in specific field screened and investigated them one by one. Results: The incidence of injury in for force recruits was 16.3% and in navy recruits was 18. 7%. The incidence of navy soldiers was 5.5%, which was significantly lower than that of navy recruits. There was a peak of incidence in the 2nd training month of navy recruits. The peak of incidence of navy soldiers was in 1st training month. The incidence of air force maintained at a high level except 2nd training month. The incidences of lower legs and ankles were higher than those of other sites in navy with percentage of 42.9% and 17.9% respectively. The incidences of ankles and lumbar region were higher than those of other sites in air force with percentage of 26.9% and 23.9% respectively. Incidence of acute traumatic injuries was highest during special course. Conclusion: The result showed the incidence of injury in sea and parachuting training varied. Different preventive measures should be adopted during special training. Objective: To study epidemiological characteristics of the military training injuries (MTI) during parachuting training of the air force and sea training of the navy. Methods: The subjects of this study were 1382, including 971 navy soldiers (300 recruits and 671 soldiers) and 411 for force recruits. Navy: Each of the injured soldiers was investigated by the trained battalion surgeon; Air force: When the parachuting training finished, two doctors in specific fields screened and investigated them one by one. Results: The incidence of injury in for force recruits was 16.3% and in navy recruits was 18. 7%. The incidence of navy soldiers was 5.5%, which was significantly lower than that of navy recruits. There was a peak of incidence in the 2nd training month of navy recruits. The peak of incidence of navy soldiers was in 1st training month. The incidence of air force maintained at a high level except 2nd training month. The incidences of lower legs and ankles were higher than those of other sites in navy with percentage of 42.9% and 17.9% respectively. The incidences of ankles and lumbar regions were higher than those of other sites in air force with percentage of 26.9% and 23.9% respectively. Incidence of acute traumatic injuries was highest during special course. Conclusion: The result showed the incidence of injury in sea and parachuting training varied. Different preventive measures should be adopted during special training.