[Object] An apparatus for chamfering fold formation tape ends is provided which not only facilitates setting of a workpiece tape but also simultaneously carries out cutting of the tape so as to form acute-angled ends and chamfering of the side faces of the tape ends to perform end processing at two positions at a time.[Means for Solving the Problems] The apparatus for chamfering fold formation tape ends includes: a positioning stopper 48 for restricting the position of one end of a workpiece tape on a platform 2; a vertically-movable engagement rod 10 for applying an arresting force onto the workpiece tape from above while one end of the workpiece tape being received by the positioning stopper 48; a pair of form cutters 21 arranged opposite to each other with an engagement needle 11 provided at the leading end of the engagement rod 10 positioned intermediate therebetween and aligned in an axial direction of the workpiece tape, for obliquely cutting into the workpiece tape from above so as to form acute-angled ends and chamfering the workpiece tape; a driving means 30 for advancing and retracting the pair of cutters 21 in conjunction with a vertical movement of the engagement rod 10; and a control lever 41 for operating the driving means 30.