PROBLEM TO BE SOLVED: To provide an autonomous travel work system for enabling a work vehicle to perform a proper work in accordance with the landform of a workplace thereby to avoid the collision of the work vehicle against an obstacle.SOLUTION: An autonomous travel work system includes a work vehicle for performing an autonomous travel along a moving passage set in a working area thereby to perform works on the basis of a work pattern, wherein said work pattern is remedied on the basis of the topographical map information of said work or the like. When the positional information within a predetermined distance from an obstacle is set in a run avoidance area, said moving passage is changed into a travel route, in which run is not made in said run avoidance area.SELECTED DRAWING: Figure 1【課題】 作業車両が作業地の地形に応じて適切な作業を行うことができ、自律走行中に作業車両が障害物に衝突することを回避する。【解決手段】 作業地内に設定された移動経路に沿って自律走行し、作業パターンに基づいて作業を行う作業車両を備える自律走行作業システムであり、前記作業パターンは前記作業地の地形図情報に基づいて修正される。 障害物から一定距離内の位置情報が走行回避区域に設定されたときに、前記移動経路が前記走行回避区域を走行しない走行経路に変更される。【選択図】図１
