The invention discloses a novel potato harvester comprising a rack, a vibrated connecting rod, a driving system, a plate-type chain and a dial wheel shaft, wherein the upper head end of the rack is provided with a gearbox connected with an industrial and agricultural 12K walking tractor gearbox; a fixed underframe is arranged below the rack and is provided with a steel bar sieve; the front end ofthe fixed underframe is provided with a plough shove; two sides of the rear end of the fixed underframe are provided with vibrated grate bars; two ends of the dial wheel shaft installed on the rear part of the fixed underframe are respectively provided with a cam and a bevel gear corresponding to a driving mechanism; the driving mechanism is connected with the gearbox by a main shaft; and the dial wheel shaft is provided with a dial wheel corresponding to the plate-type chain of the driving steel bar sieve. The novel potato harvester has the advantages of simple and compact structure, small boundary dimension, light weight and good maneuverability, can be directly in butt joint and installed with the industrial and agricultural 12K walking tractor gearbox, power can be reliably transferred, and the technical problem in the prior art that the harvester is difficult to match with the industrial and agricultural 12K walking tractor gearbox and is not suitable to operate on small plots can be solved.