To increase the contact area of a fin member disposed in a heat transfer pipe with a raw pipe, increase the heat conductivity of the fin member to the raw pipe, increase the heat exchange performance of the heat transfer pipe, increase the fixing capability of the plate-like fin member in the raw pipe, and enable the use of the plate-like fin member without displacement and deformation.

In this heat transfer pipe 1, the metal plate-like fin member 4 longer in the axial direction of the pipe and having fins 3 projected from the axial center part thereof in at least two directions is inserted and disposed in the metal raw pipe 2. Also, a fitted surface 5 is formed at the outer tip side of the plate-like fin member 4 so as to be disposed on the outside of the inner peripheral surface of the raw pipe 2 before the member is inserted and disposed in the raw pipe 2. In addition, when the member is inserted into the raw pipe 2, the fitted surface 5 is elastically deformed inward before inserting, and the member is fixedly fitted correspondingly to the inner peripheral surface of the raw pipe 2 by an elastic recovering force.