The present invention relates to a rotating exercise device, a rotating plate supporting a user's body part; A body portion composed of an upper body and a lower body that incorporates a driving portion under the rotating plate; At least three crankshafts installed between the rotating plate and the upper body and allowing the rotating plate to be eccentrically rotated with respect to the body portion; Includes; a driving unit for transmitting a driving force to at least one of the at least one crankshaft of the at least three crankshafts, the driving unit includes a driving motor, a worm gear, a driving gear, a reduction gear, and a spiral gear on the rotating shaft of the driving motor It is formed, the rotational axis of the worm gear is perpendicular to the rotational axis of the drive motor to receive the driving force from the spiral gear, the teeth of the worm gear is formed to have a predetermined angle with respect to the rotational axis of the worm gear, the drive gear is the worm gear It is fixedly coupled to the lower portion of the worm gear and the drive gear is rotationally driven around the same rotation axis, the reduction gear is formed larger than the drive gear to increase the torque while reducing the rotational speed, among the at least three crankshaft The reduction gear is connected to one of the crankshafts, and the other crankshaft is rotated in the same angle and direction as the crankshaft to which the reduction gears are connected, and the at least three crankshafts form a vertex of a triangle to provide support at the bottom of the rotating plate, The body portion is formed with a driving motor fixing portion and a gear fixing portion, and the driving motor and the worm gear are wrapped and protected by a driving motor housing and a gear housing while being closely fixed to the driving motor fixing portion and the gear fixing portion. It is characterized in that the rotating shaft of the driving motor and the part where the worm gear is