PROBLEM TO BE SOLVED: To provide a liquid chemical spraying vehicle that can easily switch between the spraying of liquid chemical to a crop and the surface washing of the crop.SOLUTION: A liquid chemical spraying vehicle is characterized by: including a liquid chemical tank 13, a boom 15 and a cleaning device 19 in a traveling vehicle body 1; spraying liquid chemical from a liquid chemical spray nozzle 15a provided to the boom 15; providing a cleaning nozzle 19a for watering in the cleaning device 19; and switching means 25 for switching the liquid (liquid chemical or water) in the liquid chemical tank 13 into water for the liquid chemical spraying boom 15 and the cleaning device 19. The spraying of the liquid chemical or water can be switched to a field at any time by the switching means 25.
