Abstract: Provided is a robot system comprising: a robot mechanism provided with fingers for grasping a workpiece; a detection unit that detects a grasping state of the workpiece by the fingers; a recognition unit that recognizes the number of workpieces being grasped by the fingers on the basis of a detection result from the detection unit; and a control unit that, after causing the robot mechanism to perform a motion of grasping the workpieces from a placing area where a plurality of workpieces are placed, if the number of the workpieces recognized by the recognition unit is different from a specified number specified in advance, controls the motion of the robot mechanism such that the number of the grasped workpieces is equal to the specified number. At least one of the fingers is flexible. The control unit controls the motion of the robot mechanism such that, in a state in which workpieces are being grasped by the fingers, the position of at least one of the fingers is changed.