Provided is a modified polypropylene composite tubular product for protecting a high-voltage cable. The modified polypropylene composite tubular product is composed of a middle layer serving as a framework and inner and outer layers, wherein the middle layer is a cylinder formed by extruding a metal wire woven mesh and a polyethylene material, and the inner and outer layers are formed by extruding a modified polypropylene material on the inner and outer sides of the middle layer. The modified polypropylene composite tubular product has the advantages that modified MPP resin serves as a main material for the inner and outer layers of the tubular product, PP/SBS serves as a modification material for the MPP resin, and calcium carbonate serves as a processing agent. Therefore, the inner and outer layers of the tubular product has enough strength and toughness, good corrosion resistance and temperature-resisting performance, and the cylinder formed by extruding the metal wire woven mesh and the polyethylene material and serving as the framework is arranged in the inside. Accordingly, the respective advantages of a metal material, a polyethylene material and a modified MPP material can be fully utilized, the physical mechanical performance of the product is comprehensively improved, and the damage resistance performance of the tubular product in the construction and usage process is enhanced.