A parallel travel work system comprising: an autonomous travel work vehicle, an accompanying travel work vehicle accompanying the autonomous travel work vehicle, and a remote controller that is able to communicate with the autonomous travel work vehicle, characterized in that the remote controller generates a first preset travel path for an autonomous travel route of the autonomous travel work vehicle and a second preset travel path (R') for a travel route of the accompanying travel work vehicle, wherein the autonomous travel work vehicle includes a position calculator that determines a position of a vehicle body with the use of a satellite positioning system, a steering actuator that activates a steering system, an engine rpm controller, a speed change means, a transceiver that communicates the autonomous travel work vehicle with the remote controller, and a controller that controls the position calculator, the steering actuator, the engine rpm controller, the speed change means and the transceiver, wherein the controller allows the autonomous travel work vehicle to run autonomously along the first preset travel path achieved from the remote controller through the transceiver, wherein the remote controller comprises a display which shows the first preset travel path and the second preset travel path (R') during the autonomous running of the autonomous travel work vehicle, and wherein, when a predetermined condition is satisfied during the autonomous running of the autonomous travel work vehicle and the autonomous travel work vehicle stops the autonomous traveling, the display shows the information of the stop of the autonomous traveling. an autonomous travel work vehicle, an accompanying travel work vehicle accompanying the autonomous travel work vehicle, and a remote controller that is able to communicate with the autonomous travel work vehicle, characterized in that the remote controller generates a first preset travel path for an autonomous travel route of the autonomous travel work vehicle and a second preset travel path (R') for a travel route of the accompanying travel work vehicle, wherein the autonomous travel work vehicle includes a position calculator that determines a position of a vehicle body with the use of a satellite positioning system, a steering actuator that activates a steering system, an engine rpm controller, a speed change means, a transceiver that communicates the autonomous travel work vehicle with the remote controller, and a controller that controls the position calculator, the steering actuator, the engine rpm controller, the speed change means and the transceiver, wherein the controller allows the autonomous travel work vehicle to run autonomously along the first preset travel path achieved from the remote controller through the transceiver, wherein the remote controller comprises a display which shows the first preset travel path and the second preset travel path (R') during the autonomous running of the autonomous travel work vehicle, and wherein, when a predetermined condition is satisfied during the autonomous running of the autonomous travel work vehicle and the autonomous travel work vehicle stops the autonomous traveling, the display shows the information of the stop of the autonomous traveling.