A robot system includes a user interface configured to receive an operational instruction from an operator, a robot installed in a workspace and configured to perform a series of works including a plurality of processes, a sensor installed in the workspace, a transparent type display unit configured so that the operator is visible of a physical real world and configured to display information detected by the sensor as the image screen, and a control device. The control device displays on the transparent type display unit, when the robot is operated by the user interface, first information that is information detected by the sensor, as the image screen.