PROBLEM TO BE SOLVED: To provide a work vehicle which allows a deceleration notification lamp, lighted on at deceleration, to be lighted off at an appropriate timing.SOLUTION: The work vehicle comprises: an engine 31 a ground travelling mechanism 3 driven by the engine 31 a deceleration notification lamp 10 that notifies the deceleration of the vehicle to the outside a deceleration degree calculation portion 50 that calculates deceleration degree showing the deceleration of the vehicle and a notification lamp control portion 51 that performs a light-on control of the deceleration notification lamp 10 on the basis of the deceleration degree and light-on determination conditions, and performs a light-off control of the deceleration notification lamp 10 on the basis of the deceleration degree and the light-off determination conditions, where the light-off determination conditions continue to be determination conditions for preventing the deceleration notification lamp 10 from being lighted off even after the light-on determination conditions are not satisfied as a result.
