PROBLEM TO BE SOLVED: To generate a suitable target route in which the inclination of the ground at a work site is considered more appropriately. A target route generation system for a work vehicle includes a work site information acquisition unit 51C that acquires work site information including topographical information for each predetermined section of the work site, and a work device installed in the work vehicle 1. A target route generation unit 51D that generates a target route for automatic traveling including a plurality of work routes arranged in parallel according to the width, and the arrangement interval of the work routes is corrected based on the inclination information in the vehicle body roll direction of the terrain information. And a target route correction unit 51F that does. [Selection diagram] Fig. 3【課題】作業地での地面の傾斜がより適正に考慮された好適な目標経路を生成する。【解決手段】作業車両用の目標経路生成システムは、作業地の所定区間ごとの地形情報を含む作業地情報を取得する作業地情報取得部５１Ｃと、作業車両１に装備された作業装置の作業幅に応じて並列に並ぶ複数の作業経路を含む自動走行用の目標経路を生成する目標経路生成部５１Ｄと、地形情報のうちの車体ロール方向の傾斜情報に基づいて作業経路の配置間隔を補正する目標経路補正部５１Ｆと、を有している。【選択図】図３
