An endoscopic treatment tool according to the present invention including: an operating wire inserted into a flexible sheath to be capable of advancing and retracting； a basket part which is positioned at a distal side of the operating wire, a distal end tip binding and fixing distal ends of the plurality of basket wires at a distal end of the basket part, a binding part in which proximal end portions of the plurality of basket wires are bound together and fixed, and a support member disposed thorough the basket part along a central axis of the basket part and of which a distal end portion is fixed to the distal end tip. A proximal end portion of the support member is positioned at a proximal side than the binding part and is connected to the operating wire to be slidable in the central axis direction with respect to the operating wire.
