[Problem to be solved] An object of the present invention is to provide a stent delivery system in which the flexibility of a pusher guide wire is not impaired, and a rotating force exerted by an operator can be transmitted to the front end of the pusher guide wire, leading to easy and precise release of the stent to the target site. [Solution] According to the stent delivery system 1, the anchor member 20 can be pushed in the direction of the front end with the tapered portion 34b of the coil body 34 since the anchor member 20 of the stent 10 is positioned between the tapered portion 34b of the coil body 34 and the protruded portion 40 when the stent 10 is delivered to the target site with the pusher guide wire 30. Further, a rotating force exerted by an operator can be transmitted to the front end of the pusher guide wire 30. Moreover, the stent 10 in the middle of release can be retracted into the catheter 50 by pulling back the pusher guide wire 30 in the direction of the proximal end and allowing the protruded portion 40 to make contact with the anchor member 20.
