PROBLEM TO BE SOLVED: To provide a technique capable of executing proper notification, when any abnormality is detected on a work vehicle.SOLUTION: A work vehicle comprises: an own vehicle position calculation part for calculating an own vehicle position； a travel work state detection sensor group for outputting a detection signal which indicates a travel work state； an early stage abnormality determination part for determining an early stage of abnormality, as early stage abnormality, based on the detection signal and the first condition； an actual abnormality determination part for determining an actual stage of the abnormality, as actual abnormality, based on the detection signal and a second condition which is stricter than the first condition； a first notification part for notifying an external part of the early stage abnormality； a second notification part for notifying an external part of the actual abnormality； and an abnormality information generation part for generating abnormality information in which determined abnormality and an own vehicle position where the abnormality occurs are combined.SELECTED DRAWING: Figure 4【課題】作業車において何らかの異常が検出された場合に、より適切な報知が実行される技術の提供。【解決手段】作業車は、自車位置を算出する自車位置算出部と、走行作業状態を示す検出信号を出力する走行作業状態検出センサ群と、検出信号と第１条件とに基づいて異常の早期段階を早期異常として判定する早期異常判定部と、検出信号と第１条件より厳しい第２条件とに基づいて異常の実段階を実異常として判定する実異常判定部と、早期異常を外部に報知する第１報知部と、実異常を外部に報知する第２報知部と、判定された異常と、当該異常が生じた自車位置とを組み合わせた異常情報を生成する異常情報生成部とを備えている。【選択図】図４
