The utility model relates to a composite tube which comprises an inner layer, a metal composite layer and an outer layer, wherein the metal composite layer is located between the inner layer and the outer layer. The composite tube is characterized in that the metal composite layer is made of metal wires spirally wound on the inner layer. The metal wires are spirally and closely arranged between the inner layer and the outer layer. Two glue bonding layers are respectively arranged between the metal composite layer and the inner layer and between the metal composite layer and the outer layer. The metal wires are steel wires. The composite tube disclosed by the utility model has the beneficial characteristics of high strength and simple structure, is capable of eliminating static electricity, and is convenient to manufacture.