An object is prevented from being sandwiched between robot arms without the occurrence of unintentional operating restrictions of the robot arms. Provided is a robot system including: a robot body that is provided with at least two links that are relatively moved by at least one joint; a sensor that detects the distances from mutually opposed surfaces of the at least two links to an object inserted between the surfaces; and a control unit that performs an interference avoidance operation if the distances detected by the sensor are less than a predetermined threshold.