The present invention provides a work vehicle including a control system that can switch between a first driving mode for allowing the work vehicle to travel in a manned state and a second driving mode for allowing the work vehicle to travel in an unmanned state, wherein the control system controls such that, during an execution of the second driving mode, a number of types of information exchanged by communication in the control system becomes less than that during the first driving mode, or a communication interval of information exchanged by the communication in the control system becomes longer than that during the first driving mode.