Abstract: An outdoor working automating system includes a rice reaper having a position detecting unit for detecting a position by receiving radio waves from a GPS satellite and a control unit for controlling the position of the rice reaper sa that the position traces predetermined route data, and a rice transplanter having a position detecting unit for detecting a position by receiving radio waves from the GPS satellite and a memory for storing the detected position. The outdoor working automating system causes the memory to store a route that the rice transplanter takes during rice transplanting, and causes the rice reaper to perform rice reaping automatically by using the position data stored in the memory as the route data of the rice reaper.