To provide a treatment tool for endoscopic surgery which has, in an insertion part, two or more bending parts that can be independently operated to bend, and which has distal forceps pieces that can be opened and closed, and rotated.A treatment tool for endoscopic surgery comprising an insertion part provided on one end of a pipe-shaped main body and an operation part provided on another end, wherein: the insertion part has two or more bendable parts and a pair of forceps pieces the operation part has a bending operation part that correspond to each of the bendable parts, an open and close operation part, and a rotation operation part the bendable parts can be operated to bend by operating a first wire member connected to the bending operation part to move back and forth inside the main body in an axial direction the forceps pieces can be operated to open and close by operating a second wire member connected to the open and close operation part to move back and forth inside the main body in an axial direction and the forceps pieces can be operated to rotate by operating a third wire member connected to the rotation operation part to rotate about the axis inside the main body.
