Body armor ballistic performance is mainly reflected in the following three aspects: (1) anti-pistol and rifle bullets many software body armor can prevent live pistol bullets, but should guard against live bullets rifle bullets or higher energy required ceramicor a steel reinforcing plate. (2) The flak various explosives such as bombs, mines, artillery shells and grenades explosion of high-speed fragment is one of the main threat on the battlefield. According to the survey, the order of the size of the threat faced by the soldiers in a battlefield: shrapnel, bullets, blast and heat. So, you want to put great emphasis on the function of the flak. (3) the Fang Fei throughout injury bullet hit the target will have a great impact, this impact force is applied to the damage produced by the human body is often fatal. That the injury is not showing through, but will cause internal injuries, severe life-threatening. Therefore, to prevent non-penetrating injury of body armor bulletproof performance is an important aspect.