A clip treatment tool (10) includes: a clip body (16) that has two arm portions (20A, 20B) and a folded portion (22), the two arm portions (20A, 20B) facing each other and being configured to open and close, the folded portion (22) connecting proximal end parts of the two arm portions (20A, 20B)； a tightening ring (18) that functions to close the two arm portions (20A, 20B) in accordance with movement of the clip body (16) from a distal end side toward a proximal end side； a pressing tube (42) that has at least one opening (50) formed in an outer surface thereof and extending in an axial direction, that has a distal end part to which the tightening ring (18) is removably attached, and that allows the clip body (16) to be contained therein in accordance with movement of the clip body (16) from the distal end side toward the proximal end side； and a coupling member (44) that has a distal end part to which the folded portion (22) is removably connected and a proximal end part to which a distal end part of an operation wire is fixed, the coupling member (44) coupling the clip body (16) and the operation wire to each other. After a clip has been once applied, it is possible to reliably maintain the applied state, and it is possible to remove the clip, which is placed in a living body, at any desirable timing.
