A coil shaping device includes a plurality of rollers having an outer circumference formed with a concave groove having an arc-shaped cross section, a roller moving mechanism making the rollers move between a gripping position, at the gripping position the plurality of rollers grips the coil from surroundings of the coil, and a separating position, at the separating position the plurality of rollers is separated from the coil, and a rolling movement mechanism making the plurality of rollers positioned in the gripping position move, by the plurality of rollers being rolled in a longitudinal direction of the coil.