Abstract
This robot system includes a robot and a robot control device for performing control so as to cause the robot to execute prescribed work on the basis of the result of detection of a subject to be detected by a sensor, the robot control device being provided with an abnormality-detection-time processing unit for, in accordance with sensing of an abnormality pertaining to the detection operation carried out by the sensor, controlling the robot so as to return to the position of a time point at which the detection serving as the source of the abnormality was carried out and then stop.