PROBLEM TO BE SOLVED: To provide a traveling work machine capable of setting a start point and an end point when calculating a target azimuth by a simple operation. A vehicle equipped with a traveling device, a position detection unit capable of detecting positional information of the vehicle based on a positioning signal of a navigation satellite, and a traveling locus of the vehicle based on temporal detection of the positional information. A possible travel locus acquisition unit, a target azimuth calculation unit that calculates a target azimuth based on the travel locus, a steering control unit that can control the steering of the traveling device along the target azimuth, and when calculating the target azimuth. One operation tool capable of setting both the start point and the end point of the traveling locus to be acquired in 1. [Selection diagram] Fig. 6【課題】目標方位を算定する際の始点及び終点の設定を簡易な操作で可能な走行作業機を提供する。【解決手段】走行装置が備えられた機体と、航法衛星の測位信号に基づいて機体の位置情報の検出可能な位置検出部と、位置情報の経時的な検出に基づいて機体の走行軌跡を取得可能な走行軌跡取得部と、走行軌跡に基づいて目標方位を算定する目標方位算定部と、目標方位に沿って走行装置の操向制御を可能な操向制御部と、目標方位を算定する際に取得する走行軌跡の始点及び終点の両方を設定可能な一つの操作具と、が備えられている。【選択図】図６
