A component mounting apparatus includes a component supply device that intermittently feeds a carrier tape, in which components are stored in a plurality of pockets formed with a uniform pitch, based on a predetermined feed pitch to supply the components stored in the pockets to a component suction position, and picks up the components supplied to the component suction position to mount the components onto a board, an imaging unit that images the pockets, and a control unit that measures a formation pitch of the pockets based on obtained image data, and changes a feed pitch of the carrier tape from the predetermined feed pitch to the formation pitch of the pockets when the measured formation pitch of the pockets and the predetermined feed pitch are different from each other, and the component supply device intermittently feeds the carrier tape based on the changed feed pitch.