This research discussed the mechanical property high strength polyethylene fiber of wraping by cotton wraping. The general type of military fabric mostly uses nylon and the cotton blend fabric, but along with technical and weapon fast development, therefore develops the high strength polyethylene (UHMWPE) substitution nylon and the cotton and blend fabric. This experiment is utilized the coverage rate and the wrap/weft density, Discuss the break strength and tear strength to understand the UHMWPE/C mechanical properties.