A damper with an integrated centrifugal pendulum-type vibration absorbing device, comprising: a drive plate formed with a stepped shape toward a substantially annular outer edge for transmitting engine torque to a transmission; a substantially annular side plate in sliding contact with an outermost edge portion of the drive plate; a substantially annular hub clutch held between the side plate and a relatively inside annular portion of the drive plate; a plurality of torsion springs which partially form arcs in a space maintained between the side plate and the relatively inside annular portion of the drive plate, and which are arranged in such a way that at least one end thereof is in sliding contact with the hub clutch; a damper back plate which grips the side surfaces of the plurality of torsion springs and is connected to the drive plate in such a way as to be removable from the outside of the drive plate in a rotational axis direction; a substantially disk-shaped and substantially annular back plate in which a centrifugal pendulum-type vibration absorbing device is mounted on an outer circumferential side, said back plate being fixed to the damper back plate by means of rivets through rivet-fixing through-holes provided on the inside of substantially doughnut-shaped radial side surfaces of the drive plate; and a centrifugal pendulum-type vibration absorbing device which is mounted on an outer circumferential surface of said back plate, characterized in that the back plate comprises a torsion spring holding surface for holding and restraining the circumferential surfaces of the torsion springs disposed on the radial side surface of the adjacent drive plate. a drive plate formed with a stepped shape toward a substantially annular outer edge for transmitting engine torque to a transmission; a substantially annular side plate in sliding contact with an outermost edge portion of the drive plate; a substantially annular hub clutch held between the side plate and a relatively inside annular portion of the drive plate; a plurality of torsion springs which partially form arcs in a space maintained between the side plate and the relatively inside annular portion of the drive plate, and which are arranged in such a way that at least one end thereof is in sliding contact with the hub clutch; a damper back plate which grips the side surfaces of the plurality of torsion springs and is connected to the drive plate in such a way as to be removable from the outside of the drive plate in a rotational axis direction; a substantially disk-shaped and substantially annular back plate in which a centrifugal pendulum-type vibration absorbing device is mounted on an outer circumferential side, said back plate being fixed to the damper back plate by means of rivets through rivet-fixing through-holes provided on the inside of substantially doughnut-shaped radial side surfaces of the drive plate; and a centrifugal pendulum-type vibration absorbing device which is mounted on an outer circumferential surface of said back plate, characterized in that the back plate comprises a torsion spring holding surface for holding and restraining the circumferential surfaces of the torsion springs disposed on the radial side surface of the adjacent drive plate.