目的 观察榴弹对肢体的致伤特点利规律，为战伤救治提供依据。方法 电启动引爆离地面７ｍ高的榴弹，将３６只绵羊布放于距爆心６－４８ｍ处，致伤时测量冲击波超压和破片速度，致伤后进行病理解剖观察。结果 肢体破片伤的发生率为破片伤动物的４８％，平均每只动物肢体有１．３３处破片伤，伤后即刻死亡率为５０％，伤后６ｈ时达６６．６６％。肢体贯通伤和盲管伤各占５０％。骨折的发生率为８３．３３％（１０／１２），其中８０％为粉碎性骨折，也可见骨骼离断和缺损。肢体爆炸伤时，以腹部和胸部合并伤最多，分别为４１．６７％和３３．３３％。肺脏和鼓膜冲击伤的合并率分别为５８．３３％和１６．６７％。肢体大血管和神经直接损伤的发生率虽不高，但损伤后果严重。另外，肢体爆炸伤的伤口污染也很严重。结论 肢体爆炸伤损伤严重，伤道污染严重，粉碎性骨折发生率高，合并伤多，但肢体爆炸伤主要以破片致伤为主，其早期死亡也多为合并伤所致。 Objective To observe the characteristics of grenades injury to the limbs of the law, provide the basis for the treatment of war injuries. Methods Electrically activated grenades detonated 7m above the ground and 36 sheeps were placed at a distance of 6-48m away from the blasting heart. The overpressure and fragment velocity of the shock wave were measured during the injury. Pathological anatomy was observed after injury. Results The incidence rate of limb fragmentation was 48% of the fragmented animals, with an average of 1.33 broken limbs in each animal limbs. The immediate mortalities were 50% and 66.66% at 6h after injury. Limb injuries and blind pipe injuries each account for 50%. The incidence of fractures was 83.33% (10/12), of which 80% were comminuted fractures, but also bone fracture and defect. Injury to limbs, with the most abdominal and chest injuries, were 41.67% and 33.33%. The combined rates of lung and tympanic membrane injury were 58.33% and 16.67% respectively. Limb vascular and nerve injury, although the incidence is not high, but the consequences of serious injury. In addition, limb wound injuries wound pollution is also very serious. CONCLUSIONS: Extremities have serious injuries due to blast injuries, severe injuries of wounds, high incidence of comminuted fractures and more combined injuries. However, limb explosive injuries are mainly caused by fragment injuries, and their early deaths are mostly caused by combined injuries.