A work vehicle comprises a counter weight (1) manufactured by casting, an
outer surface thereof being formed in a substantially arc shape, the
counter weight (1) including at a lower section thereof an extended
portion extending in leftward and rightward directions to have a
substantially arc shape, tip ends of the extended portion and a lower
part of a center section of the counter weight (1) being provided with a
lower attachment base, and an upper face thereof being provided with a
canopy attachment base; and a canopy (2) including a roof (22), pillars
(21) standing at left side and right side for supporting the roof (22),
and a lower attachment member (23) manufactured by casting for fixing
lower ends of the pillars (21), the canopy (2) being mounted on the
counter weight (1).