PROBLEM TO BE SOLVED: To provide a field guidance system that provides a technique capable of efficiently creating a guidance line even in a polygonal field, and is constituted to input data of a headland and capable of creating a route of turning in the headland.SOLUTION: Accordingly, a field guidance system is the system capable of generating any work line every working condition based on field polygon data. Furthermore, the field guidance system displays a background map such as a road, a ridge, a water channel, a building, facilities, and an obstacle in addition to the display of a field division and a guidance line on a guidance screen, and thereby the system enables work even at night.SELECTED DRAWING: Figure 1
