PROBLEM TO BE SOLVED: To provide a work vehicle that has a low-center of gravity and can travel stably even in a farm field having a narrow furrow and a slope land.SOLUTION: The work vehicle 1 includes: a pair of right and left crawler travel devices 10L, 10R in which a heavy load including a motor 26 is built, which capable of solely traveling； and a connection frame 11 for connecting the pair of right and left crawler travel devices 10L, 10R. The connection frame 11 is formed in a portal shape having a predetermined height.SELECTED DRAWING: Figure 3【課題】畝間が狭く傾斜地を有する圃場においても、低重心化が図られて安定した走行ができる作業車両を提供する。【解決手段】作業車両１は、モータ２６を含む重量物が内蔵されて単独で走行可能に構成された左右一対のクローラ走行装置１０Ｌ，１０Ｒと、左右一対のクローラ走行装置１０Ｌ，１０Ｒを連結させる連結フレーム１１と、を備え、連結フレーム１１は、所定の高さを有する門型状に形成される。【選択図】図３
