Abstract: An apparatus for changing workpiece holders in a transfer press. An attachment 90 having suction cups 10 is removably attached to a cross-bar 8. The attachment 90 is supported on a attachment support base 19 disposed in a lower die 2a-2e. A movable upright support 12 which is movable between the attachment support base 19 and the cross-bar 8 is disposed on a die change truck 4. An attachment bearer 17 having a holding device 16 capable of holding the attachment 90 is provided on the top end of the movable upright support 12. The attachment 90 which has been supported on the attachment support base 19 is, in turn, held in position by the holding device 16 of the movable upright support 12, and then through movement of the movable upright support 12 the attachment 90 is transferred to the position of the cross-bar 8 for being fitted on the cross bar 8. Change of suction cups 10 is performed simply through attachment 90 changing. Thus, change of workpiece holders in connection with work change is automatized.