Abstract: An object of the present invention is to provide a method of positioning ICs and an IC handler utilizing the method in which a vertical mechanism is not provided in a positioning mechanism. In the IC handler, a positioning wall piece encloses a table, it has two pairs of inner faces, each pair of which are facing each other, lower portions S of each pair are formed into vertical faces and mutually separated with a distance corresponding to outermost edges of the IC, upper portions T of each pair are formed into slope faces whose distance is gradually made longer in an upward direction. An elastic member elastically supports the positioning wall piece, which is capable of moving vertically.