[Object] To provide a clip removal device configured so that a clip implanted in a body can be easily removed by endoscopic manipulation.[Solving Means] Provided is a clip removal device whereby a clip 1 implanted in a living organism is removed by endoscopic manipulation. This device has a sheath 22, a drive wire 23 which is inserted through the sheath, and a removal device body 21 which is provided on the distal end side of the drive wire 23. The removal device body 21 is provided with a pair of longitudinal pieces 21a which, when pulled into the distal end 22a of the sheath 22, is closed so as to move toward each other and which, when caused to protrude from the distal end 22a of the sheath 22, is opened so as to move away from each other. Engagement tapered sections 21d are formed at the front ends of the longitudinal pieces 21a such that the width of the longitudinal pieces 21a increases toward the front end side. In the process in which the longitudinal pieces 21a are pulled into the distal end 22a of the sheath 22, the engagement tapered sections 21d engage with the fastening ring 14 of the clip 1 to move the fastening ring 14 toward the base end of the clip 1.
