Abstract: A hemming apparatus is disclosed including a hemming die for placing and supporting a work, a hemming punch including previous bending portion and bending portion each placed adjacent to said heming die and carrying out bending of said work, a slide cam for fixing and supporting said hemming punch and including a cam follower, a moving mechanism for applying a resilient force to said slide cam in one direction and moving said slide cam to a prescribed distance, a cushion holder for placing and fixing said slide cam and said moving mechanism, and a movable supporting mechanism for supporting said cushion holder which can vertically move to a prescribed distance. The upper mold includes a presser for pressing and fixing the work on said hemming die, driver cam for pushing said cam follower of said slide cam; and a liner for pushing said hemming punch.