PROBLEM TO BE SOLVED: To provide a field work machine capable of easily and effectively solving a problem in which accuracy deterioration occurs in azimuth detection using a satellite at low speed.SOLUTION: A field work machine comprises: a positioning unit 5 having a GNSS module 50 and outputting positioning data an automatic steering unit 83 performing, in a work travel route where the field work machine travels activating a field work device 2 among calculated travel routes, automatic steering so that a travelling machine body travels along the travel route on the basis of the positioning data and the travel route a low speed shifting state determination unit 84 determining a low speed shifting state that a travel speed is shifted to be a prescribed speed or less and an automatic steering determination unit 82 stopping, when the low speed shifting state is determined during execution of the automatic steering, the automatic steering.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】衛星を用いた方位検出における低速時精度低下の問題を簡単かつ効果的に解消できる圃場作業機。【解決手段】GNSSモジュール50を有するとともに測位データを出力する測位ユニット5と、算定された走行経路のうちの圃場作業装置2を駆動しながら走行する作業走行経路において、測位データと走行経路とに基づいて走行機体を走行経路に沿うように自動操舵する自動操舵部83と、走行速度が所定速度以下に移行する低速移行状態を判定する低速移行状態判定部84と、自動操舵の実行中に低速移行状態が判定された場合、当該自動操舵を停止する自動操舵決定部82とが備えられている。【選択図】図1
