The invention discloses a potato crop cleaning device for crop processing and belongs to the technical field of agricultural product processing. The potato crop cleaning device solves the problem thatthe contact area between potato crops and cleaning fluid is fixed and the cleaning efficiency us influenced since a filtration frame of the existing device is fixed in position. The potato crop cleaning device is characterized by comprising a workbench and a cleaning tank, wherein the workbench is arranged on the top of the cleaning tank and fixedly connected with the cleaning tank through bolts;the cleaning tank is internally provided with a filtration frame where crops are placed; and filtration frame driving components are fixedly connected with the two ends of the filtration frame through zippers. The potato crop cleaning device is simple to operate and high in cleaning efficiency; at the same time, with the adoption of a cleaning hair brush, residual dirt on the filtration frame canbe avoided; with the adoption of the filtration frame driving components, the contact area between the crops and the cleaning fluid is increased; at the same time, the cleaning efficiency is improved; with the adoption of limiting components, the filtration frame and the crops can be protected; and the loss of the crops is avoided.