Ultra-high molecular weight polyethylene (UHMW-PE) fiber is the third-generation special fiber in the world. Its strength is as high as 30.8cN/dtex. Its specific strength is the highest among chemical fibers. It also has good wear resistance, impact resistance, corrosion resistance, Excellent performance such as light fastness. It can be directly made into ropes, cables, fishing nets and various fabrics: bulletproof vests and clothes, cut-resistant gloves, etc. The bulletproof effect of bulletproof vests is better than aramid. Internationally, ultra-high molecular weight polyethylene (UHMW-PE) fibers have been woven into ropes of different deniers, replacing traditional steel cables and synthetic fiber ropes. Ultra-high molecular weight polyethylene (UHMW-PE) fiber composite materials have been used in the military as armored weapon shells, radar protective shell covers, helmets, etc.;It have been made into bowstrings, skis and water skis on sporting goods.