PROBLEM TO BE SOLVED: To provide a working vehicle that is facilitated in getting in and out of a driving part while reducing the possibility of coming into contact with an outside object during traveling of a machine body.SOLUTION: The working vehicle includes: a driving part 9 a driving part support frame 26 for supporting the driving part 9 from a lower side and a boarding step part 81 for getting in and out of the driving part 9. The boarding step part 81 is coupled and supported to the driving part support frame 26 so as to be rotatable about a vertical axis X1 between a boarding action position and a storage position.COPYRIGHT: (C)2015,JPO&INPIT【課題】機体走行時に外物との接触のおそれを少なくしながら、運転部への乗り降りが行い易い作業車を提供する。【解決手段】運転部9と、運転部9を下方から支持する運転部支持フレーム26と、運転部9に対して乗り降りするための乗降用ステップ部81とが備えられ、乗降用ステップ部81が、乗降用作用位置と格納位置とにわたり上下軸芯X1周りで回動可能に運転部支持フレーム26に連結支持されている。【選択図】図7