A treatment tool for an endoscope according to the present invention includes: an outer sheath to be inserted into a channel of an endoscope a forcep sheath which is movably arranged in the outer sheath along an axial direction a plurality of forcep cups which are attached to a distal end of the forcep sheath, at least one of which is formed with a sharp needle-shaped portion on a distal end, and which cooperate with each other to be openable/closable as a whole an operation wire which is movably arranged in the forcep sheath along an axial direction, and is connected to the forcep cups, and which opens/closes the forcep cups when moved in its axial direction a first operation portion which is movably attached along an axial direction of a proximal end of the outer sheath, and is connected to a proximal end of the forcep sheath and a second operation portion which is movably attached to the first operation portion along an axial direction of the proximal end of the forcep sheath, and is connected to a proximal end of the operation wire.
