A clipping device improves defects that the clip can not be again opened once the clip is closed, and that it is necessary to execute the operation in a state in which the clip is not sufficiently opened. The invention provides a clip device for an endoscope constituted by a clipping means having a pair of arm portions which are allowed to be opened and closed, an operating means for holding the arm portions of the clipping means so as to open and close the arm portions, a fixing means for fixing the arm portions after closing the arm portions, and an arranging means for arranging the fixing means in an outer side of the arm portion.