PROBLEM TO BE SOLVED: To provide an ultrahigh molecular weight polyethylene composite material having excellent abrasion resistance, elastic modulus, and impact resistance at the same time, and capable of being used in a region requiring abrasion resistance as an artificial joint, and to provide a method for manufacturing the same.SOLUTION: An ultrahigh molecular weight polyethylene composite material is obtained by pressurizing and heating a mixture containing ultrahigh molecular weight polyethylene and carbon nanotube and molding the mixture in a prescribed shape. The molecular weight of polyethylene on an interface between the ultrahigh molecular weight polyethylene and the carbon nanotube is smaller than the molecular weight of the ultrahigh molecular weight polyethylene.
