A power-driven stand device in a motorcycle includes a frame, a stand angularly movably mounted on the frame, the stand being manually movable in a relatively light load range thereof, a drive source for moving the stand in a relatively heavy load range thereof, a control member for remotely controlling the stand, a first detector associated with the control member for detecting the control member in a prescribed position, a second detector associated with the stand for detecting the stand substantially in contact with the ground, and a control unit for controlling the drive source to operate the stand in response to combinations of outputs of the first and second detectors.