A treatment tool for an endoscope includes: a treatment portion that is positioned on a distal end side and of which at least a portion is formed from an electroconductive material an operating wire that is formed from an electroconductive material and is connected to the treatment portion a sheath that is formed from an electrically non-conductive material through which the operating wire is inserted a base that is fixed to a base end side of the sheath an operating section that is rotatably mounted on the base and is connected to a base end side of the operating wire, and that causes the treatment portion to move forwards and backwards and to rotate via the operating wire and a plug that is provided on the base and is electrically connected to the operating wire.
