A storage box power supply structure for a saddled vehicle, comprising: a storage box ; a carrier provided on a rear section of a vehicle and configured to detachably mount the storage box on a vehicle body; a pair of left and right side stoppers configured to protrude from a lower surface of the storage box , wherein a pair of left and right front hooks disposed on a front lower section of the storage box , wherein the left and right side stoppers face each other via a rear hook disposed at a center of a rear lower section of the storage box , wherein the rear hook disposed between the left and right side stoppers ; a pair of left and right front hook receiving sections configured to receive the left and right front hooks , wherein the left and right front hook receiving sections provided in a front section of the carrier ; a pair of left and right stopper receiving sections configured to receive the pair of left and right side stoppers , wherein the left and right stopper receiving sections provided on an upper surface of a rear section of the carrier ; a stopper-side terminal provided on the left and right side stoppers itself and configured to supply electric power to an electrical component ; and a receiving-side terminal provided on the left and right stopper receiving sections itself, connected to the stopper-side terminal when the storage box is mounted on the carrier and configured to rub against the stopper-side terminal , wherein the plurality of receiving-side terminals are provided at intervals in a vehicle width direction, wherein the plurality of receiving-side terminals are provided in one stopper receiving section . a storage box ; a carrier provided on a rear section of a vehicle and configured to detachably mount the storage box on a vehicle body; a pair of left and right side stoppers configured to protrude from a lower surface of the storage box , wherein a pair of left and right front hooks disposed on a front lower section of the storage box , wherein the left and right side stoppers face each other via a rear hook disposed at a center of a rear lower section of the storage box , wherein the rear hook disposed between the left and right side stoppers ; a pair of left and right front hook receiving sections configured to receive the left and right front hooks , wherein the left and right front hook receiving sections provided in a front section of the carrier ; a pair of left and right stopper receiving sections configured to receive the pair of left and right side stoppers , wherein the left and right stopper receiving sections provided on an upper surface of a rear section of the carrier ; a stopper-side terminal provided on the left and right side stoppers itself and configured to supply electric power to an electrical component ; and a receiving-side terminal provided on the left and right stopper receiving sections itself, connected to the stopper-side terminal when the storage box is mounted on the carrier and configured to rub against the stopper-side terminal , wherein the plurality of receiving-side terminals are provided at intervals in a vehicle width direction, wherein the plurality of receiving-side terminals are provided in one stopper receiving section . <EOS>