This study was carried out to develop bulletproof helmet with improved bulletproof performance. In modern warfare, the role of personal protection materials in combat is very important because of increase of personal safety. Bulletproof helmets are being developed in the advanced countries in consideration of complex factors such as bulletproof performance improvement and light weight for reducing combat load. In order to develop the bulletproof helmet with improved bulletproof performance to be used in the future, the bulletproof performance test method is presented. The test was carried out under various environmental conditions for the evaluation of the bulletproof helmet.