High tenacity high modulus PE fiber is not only the highest tenacity bus also low weight, furthermore it provides highest energy absorption and fastest shock wave dissipation, so it is suit for ballistic field. To cooperate with NO. 2 Research Institute of Public Security Department, we have developed soft bulletproof vest which is made by Ultra High Molecular Weight PE material. It features lightweight, soft, comfort, outstanding UV resistant, low moisture sensibility and waterproof. It is an idea and new material in bulletproof products as its powerful protection capability and high specific energy absorption.