A shovel according to one embodiment of the present invention is provided with a swing hydraulic motor 21, a relief valve 400L, 400R provided on the swing hydraulic motor 21, and an accumulator part 42 that supplies to the swing hydraulic motor 21 a working oil having a pressure lower than a relief pressure of the relief valve 400L, 400R. The accumulator part 42 accumulates the working oil on a braking side of the swing hydraulic motor 21. The accumulator part 42 can eject the working oil to an upstream of a main pump 14.