A medical robot includes a bed on which an object is to be disposed, and a robot arm unit disposed above or below the bed, and including an emitting member movable within a trajectory on a sphere having a center at which a target point is disposed, wherein the bed and the robot arm unit may move relatively in a vertical or horizontal direction, and the object may be repositioned to the target point by relatively moving the bed and the robot arm unit in the vertical or horizontal direction, and the emitting member may move to face the target point.
