A travel route generation device is provided for generating a travel route for automatic traveling of a field work vehicle. The travel route generation device includes a travel route generation unit (62) to generate a travel route covering a field, a getting-off point determination unit (63) to determine a getting-off point at which a driver gets off a field work vehicle in the travel route, a getting-on point determination unit (64) to determine a getting-on point at which the driver gets on the field work vehicle in the travel route, and a travel route division unit (65) to define a travel route for manual traveling as a travel route portion between the entrance and the getting-off point in the travel route and a travel route portion between the getting-on point and the entrance in the travel route and to define a travel route for the automatic traveling as a travel route portion between the getting-off point and the getting-on point in the travel route.
