PROBLEM TO BE SOLVED: To provide a crop washing device capable of achieving reliable washing force with a simple structure and largely reducing a maintenance cost.SOLUTION: The crop washing device includes: a conveyance unit 10 conveying a crop 1 as a washing target; and plural nozzles 20A, 20B and 20C injecting washing fluid to the crop 1 conveyed on the conveyance unit 10. The nozzles 20A, 20B and 20C are arranged with a predetermined pitch on a peripheral surface of a virtual cylinder VC having an axis DC in a conveyance direction of the crop 1 to constitute a nozzle group. The nozzles 20A, 20B and 20C constituting the nozzle group inject the washing fluid, while the adjacent nozzles 20A, 20B and 20C in a peripheral direction of the virtual cylinder VC are targeted to shifted points in front/rear position in the conveyance direction on the axis DC. Less reduction of the washing force is caused by interference in injected washing water of the adjacent nozzles 20A, 20B and 20C in a peripheral direction of the virtual cylinder VC, and washing unevenness or washing failure is hardly caused.