PROBLEM TO BE SOLVED: To provide a work vehicle capable of performing a work by adjusting a headland width from a levee edge to a proper width, regardless of height of steering technique of an operator, when performing a work, while reciprocating in a field by a traveling machine body.SOLUTION: A work vehicle is provided with control means for setting an implement lowering start line based on a position at a turning start time of a traveling machine body 2 to be performed on a field end, for calculating the position of the traveling machine body 2 based on a steering operation by a steering part and on a travel distance by travel devices 5, 6, and for starting lowering of the implement, when reaching the implement lowering start line in the state where turning of the traveling machine body 2 is finished.SELECTED DRAWING: Figure 19【課題】圃場を走行機体で往復しながら作業を行う際に、オペレータの操縦技術の高さによらず、畦際からの枕地幅を適切な幅に揃えて作業を行うことができる作業車輌を提供する。【解決手段】圃場端で行われる走行機体2の旋回開始時の位置を基準に作業機下降開始線を設定し、操向部による操向操作及び走行装置5、6による走行距離に基づいて走行機体2の位置を算出し、走行機体2が旋回を完了した状態で作業機下降開始線に達すると、作業機の下降を開始する制御手段を設けた。【選択図】図19
