A peeling device for peeling off a sheet-like recording medium that is conveyed while adhering to a surface of a rotating member that rotates, from the rotating member, includes a peeling guide plate one side of which is close to a surface of the rotating member in a region where the surface of the rotating member advances while curving in the rotating direction, or on a downstream side of the region and which is disposed in a rotating direction of the rotating member, and an edge surface of the peeling guide plate including at least one convex portion. An air jetting unit jets a pulsed compressed air toward a gap between the surface of the rotating member and the one side of the peeling guide plate that is from a region interposed between the surface of the rotating member and the surface of the peeling guide plate that faces the surface of the rotating member.