A work vehicle having an engine mounted thereto includes a vehicle body frame extending in the longitudinal direction of vehicle, a seat supporting deck supported to the vehicle body frame via a suspension unit, a driver's seat supported to the seat supporting deck upwardly of this seat supporting deck, a fuel tank supported to the seat supporting deck downwardly of the driver's seat and supplying fuel to the engine； and a canister supported to the seat supporting deck and connected to the fuel tank.
