The invention discloses a modified epoxy resin reinforced polyurethane mixed component, a preparation method thereof and an application of the modified epoxy resin reinforced polyurethane mixed component. The modified epoxy resin reinforced polyurethane mixed component comprises a polyol component (component A) containing modified epoxy resin and an isocyanic acid radical terminated prepolymer component (component B), the mole ratio of hydroxyl (-OH) in the polyol component (component A) containing the modified epoxy resin to isocyanic acid radicals (-NCO) in the isocyanate prepolymer component (component B) is (0.95-1.05):1, and the modified epoxy resin reinforced polyurethane mixed component can be used for preparing a high-performance polyurethane elastomer. The adding quantity of filling particles is wide in range, high-filling-volume particles can be effectively adhered without adhesives, and a prepared hybrid material is excellent in elasticity, broad in density and hardness adjustable range and wide in application. By adding the epoxy resin, the heat resistance of the hybrid material is improved, and the hybrid material can be applied to a high-temperature environment.