PROBLEM TO BE SOLVED: To provide a work vehicle capable of improving operating accuracy.SOLUTION: A seedling transplanter 1 as a work vehicle includes: right and left front wheels 12a which are steerably arranged at a front part of a traveling vehicle body traveling in a farm field right and left rear wheels 12b which are steerably arranged at a rear part of the traveling vehicle body GPS communication parts 51, 52 which detect a position of the traveling vehicle body a calculation part 101 which calculates an ideal travel track in the farm field a storage part 102 which stores an actual travel track of the traveling vehicle body in the farm field and a control part 103. The control part 103 steers at least either the right and left front wheels 12a or the right and left rear wheels 12b so that the actual travel track overlaps with the ideal travel track, on the basis of the ideal travel track calculated by the calculation part 101 and the actual travel track stored in the storage part 102.COPYRIGHT: (C)2015,JPO&INPIT【課題】作業精度を向上することができる作業車両を提供する。【解決手段】作業車両としての苗移植機1は、圃場を走行する走行車体の前部にステアリング操舵可能に設けられた左右の前輪12aと、走行車体の後部にステアリング操舵可能に設けられた左右の後輪12bと、走行車体の位置を検知するGPS通信部51,52と、圃場の理想の走行軌跡を算出する算出部101と、圃場の走行車体の実際の走行軌跡を記憶する記憶部102と、制御部103とを備える。制御部103は、算出部101が算出した理想の走行軌跡と、記憶部102に記憶された実際の走行軌跡とに基いて、実際の走行軌跡が理想の走行軌跡に重なるように左右の前輪12aと左右の後輪12bとのうち少なくとも一方をステアリング操舵する。【選択図】図3
