To provide a corrugated tube which can ensure heat dissipation of a tube body and suppress rotation of the tube body.

A corrugated tube comprises: a tube body part 10 in which a large-diameter cylindrical part 18 and a small-diameter cylindrical part 20 are alternatively continuously formed in the axial direction; and a clamp 12 that includes a cylindrical hole into which the tube body part 10 can be inserted, and that is used to attach the tube body part 10 to a member to be attached. The clamp 12 includes: a pair of first projection parts 36 which are opposed to each other via the large-diameter cylindrical part 18; and a least one pair of second projection parts 38 which protrude between a pair of the first projection parts 36 from the first projection part in the axial direction of the cylindrical hole. An air gap is arranged between a pair of the second projection parts 38.