This stent delivery system includes: a guide catheter (10) inserted into the inside of a cylindrical stent (1), and into the inside of the push catheter (20), which is for pushing the stent (1) along the guide catheter (10)； a stent connecting member (30) for connecting the stent (1) with the push catheter (20)； and a stent releasing member (40) for releasing the stent (1) from the push catheter (20) by separating the connection between the stent (1) and the push catheter (20) attached by the stent connecting member (30), independently operable from the guide catheter (10), and inserted into the inside of the push catheter (20).
