The invention discloses a sweet potato cleaning device for food processing. The sweet potato cleaning device comprises a bottom plate, a cleaning frame, a water containing box, a mounting plate, a driving device, a lifting plate, a second motor, a second disc, a connecting rod, a third motor, a stirring shaft, a hairbrush, a rotating shaft, a gear and a rack, wherein the driving device comprises afirst motor, a first disc, a movable rod and a connecting rod. The sweet potato cleaning device disclosed by the invention is provided with the driving device, the third motor, the stirring shaft andthe stirring rod, and the cleaning box is driven to move from the left to right by virtue of matching, so that sweet potatoes in the cleaning box continuously shake, sediments on the sweet potato surface are shaken off, and cleaning is complete. Due to the arrangement of the rotating shaft, the gear and the rack, the cleaning box continuously rotates forwards and backwards by virtue of matching,and the cleaning effect is further improved, so that cleaning is rapid and fully complete. Due to the arrangement of the second motor, the second disc and the connecting rod, the second disc is drivento rotate by the second motor, the stirring shaft and the stirring rod are driven to move up and down by virtue of matching, the cleaning is full, and the cleaning efficiency is further improved.