A stent delivery system (1) which is inserted into an endoscope and is for placing a stent (4) inside a body cavity, this stent delivery system being provided with a long pusher catheter (11) which is flexible a guide catheter (13) which can pass through the lumen of the pusher catheter in a freely advancing and retracting manner and a stent which is disposed to the front end of the pusher catheter, and has a cylindrical stent main body into which the guide catheter can be inserted, and a grip piece (21) that is attached so as to extend from the main body and consists of a long narrow member that is pliable and can be disposed in the space between the guide catheter and the pusher catheter, when said guide catheter is inserted into the lumen of the pusher catheter.
