Abstract: A tractor cabin having a pair of right and left front struts, a pair of right and left rear struts, a pair of right and left intermediate struts disposed between the front and rear struts, a top frame interconnecting upper ends of the front, rear and intermediate struts, a floor sheet attached to lower ends of the front, rear and intermediate struts, and a gate-shaped cabin front defined by the front struts and the top frame. The cabin comprises a gate-shaped partition assembly disposed at a lower mid-position transversely of the cabin front, connecting members connecting right and left lower ends of the partition assembly to lower ends of the right and left front struts, and a transparent member secured to inner peripheries of the cabin front, the transparent member including side transparent portions extending downwardly therefrom.