A stent delivery system 1 has a distal-side tube 2, a proximal-side tube 4, a slide tube 7 disposed proximately to a proximal end of a stent accommodation tubular member 5, a fixing tube 8 to which the distal-side tube 2 and the proximal-side tube 4 are fixed and which is capable of accommodating the slide tube 7, and a pulling wire 6 for moving the tubular member 5 toward a proximal side. The slide tube 7 is movable toward the proximal side by being pulled by the pulling wire 6, and is not fixed to the stent accommodation tubular member 5.
