To provide a tube material bending apparatus capable of bending the material with less tube diameter fluctuation in a bending section while causing no flaw, etc., on its surface.

The tube material bending apparatus is provided with an apparatus main body 1, a bending die 2, an end part fixing part 3, a pressing part 4 and an engaging part 5. The bending die 2 is provided with a groove part 21 arranged to a side face and a turning shaft part 22. The pressing part 4 is provided with a hydraulic cylinder to press at a fixed pressure a tube material 91 to be bent to the groove part 2 of the bending die 2. The engaging part 5, in which an end part side of the tube material 91 in bending is engaged without turning together with the bending die 2 so as to move in the axial direction of the tube material 91, is provided with a rail 51 and a guide 52 movable on the rail 51. Thus, by manufacturing a pole by using the tube material bending apparatus, the pole having an arbitraty bending shape is easily obtained. Further, the obtained pole's tube diameter is unchanged and it has no flaw.