探讨了冲击伤复合高速破片致伤的损伤特点及复合材料对冲击伤的防护效果。结果表明，肢体高速破片致伤对肺冲击伤具有加重作用，加重效应主要发生在原发冲击伤部位，加重效应的机理可能与压力波引起的血流扰动有关。利用复合材料防护可减轻肺冲击伤程度，降低动物的死亡率。 The injury characteristics of composite high speed rupture with impact injury and the protective effect of composite on impact injury were discussed. The results showed that limbs injured by high speed fragmentation had an aggravating effect on pulmonary impact injury. The aggravating effect mainly occurred on the primary impact injury site. The mechanism of aggravating effect might be related to the disturbance of blood flow induced by pressure wave. The use of composite materials can reduce the impact of lung injury and reduce animal mortality.