The utility model discloses a kind of potato sorting devices, a plurality of parallel roller is equipped on main support frame, soft sleeve is covered on roller surface, adjacent roller spacing gradually increases along conveying direction, first groove and second groove are equipped below roller and are respectively connected with first slide and second slide.Vibrating mechanism is installed on auxiliary support frame, it is driven connecting rod by
crank rotation to make column connecting piece
reciprocating motion, guide pillar is slidably matched with buffer spring in shaft cylinder to realize the vibration of main support frame, guide pillar and guide sleeve ensure vibration trajectory accurate.Potato is conveyed along roller under the vibration assistance when sorting operation, size classification is realized by gradually increasing roller gap, smaller potato falls into first groove first, larger potato continues to be conveyed to second groove.The device realizes efficient low-damage sorting by the synergistic effect of spacing classification, soft sleeve buffering, vibration assistance and spring buffering, improves sorting efficiency, reduces potato damage rate.