A component feeding device includes a cover tape lifting portion that carries out a lifting process of lifting a cover tape of a component storage tape, which travels along first guide surface portions, and a cover tape post-processing portion that carries out post-processing. The first guide surface portions are formed into curved shapes. The cover tape lifting portion includes a lifting extent adjusting portion that continuously increases an extent of lifting of the cover tape off a carrier tape. The cover tape post-processing portion includes an upper regulating portion that pushes the cover tape having been subjected to the lifting process outward in a tape width direction. The gap between the first guide surface portions and the upper regulating portion is determined such that the gap becomes narrower as the gap extends from the upstream side to the downstream side in the tape send-off direction.