PROBLEM TO BE SOLVED: To provide a work vehicle automatic travel system which properly functions even when deploying a plurality of work vehicles in a large work field.SOLUTION: The work vehicle automatic travel system includes: an area setting part for setting a work field to a section CA1 and CA2 acquired by dividing an outer periphery area SA and a work object area CA into a plurality of areas by an intermediate division area CC a route management part for managing a large number of travel route elements constituting travel routes covering the sections and circulation route elements constituting circulation routes circulating the outer area and the intermediate division area in a readable manner and a route element selection part for selecting a next travel route element to be traveled next or a next circulation route element on the basis of an own vehicle location and work travel states of the other vehicles so that at least one work vehicle 1m, 1s works for and travels each of the sections.SELECTED DRAWING: Figure 24COPYRIGHT: (C)2018,JPO&INPIT【課題】広大な作業地に複数台の作業車が投入される場合であっても、適切に機能する作業車自動走行システムが要望されている。【解決手段】作業車自動走行システムは、作業地を、外周領域SAと、作業対象領域CAを中割り領域CCによって複数に分割して得られた区画CA1,CA2とに設定する領域設定部と、区画を網羅する走行経路を構成する多数の走行経路要素と、外側領域及び中割り領域を周回する周回経路を構成する周回経路要素とを読み出し可能に管理する経路管理部と、区画のそれぞれが少なくとも1台の作業車1m、1sで作業走行されるように、自車位置と他車の作業走行状態とに基づいて、次に走行すべき次走行経路要素または次周回経路要素を選択する経路要素選択部とを備えている。【選択図】図24
