PROBLEM TO BE SOLVED: To provide a work vehicle capable of storing a pin (lynch pin) used for mounting (coupling) a working device without falling off. SOLUTION: The work device is attached to the elevating device 20 with the attachment shaft 100 inserted therethrough, and is inserted in the connecting member 31 connecting the work device to the elevating device 20 and the attachment shaft 100 in the radial direction. The shaft portion 32a and the retaining ring 32c rotatable so as to lock the shaft portion 32a on the mounting shaft 100, and the linch pin 32 for preventing the mounting shaft 100 from coming off from the connecting member 31, and the lifting device 20. When the work device is not attached to the work storage device, a pin storage unit 42 for storing the linch pin 32 is provided, and the pin storage unit 42 is formed in a polygonal plate shape and has a flat plate portion 42a protruding from the PTO shaft cover 41 and a flat plate portion. A through hole 42b that penetrates the flat plate portion 42a in the thickness direction is provided in the vicinity of a corner portion on the protruding side of the 42a so that the shaft portion 32a of the linch pin 32 can be inserted. [Selection diagram] Fig. 6【課題】作業装置の装着（連結）に用いるピン（リンチピン）を脱落しない状態で保管することができる作業車を提供する。【解決手段】作業装置の取付軸１００を挿通した状態で昇降装置２０に取付けられることで、作業装置を昇降装置２０に連結する連結部材３１と、取付軸１００に対して径方向に挿通される軸部３２ａ、及び軸部３２ａを取付軸１００にロックするように回動可能な止め輪３２ｃを有し、取付軸１００が連結部材３１から抜けるのを防止するためのリンチピン３２と、昇降装置２０に作業装置を装着しない場合に、リンチピン３２を保管するピン保管部４２を具備し、ピン保管部４２は、多角形板状に形成され、ＰＴＯ軸カバー４１から突出する平板部４２ａと、平板部４２ａの突出側の角部近傍に、リンチピン３２の軸部３２ａを挿通できるように、平板部４２ａを厚さ方向に貫通する貫通孔４２ｂと、を具備する。【選択図】図６
