The utility model discloses a backpack corn harvester, which comprises a chassis. A harvesting and crushing device and a corn chamber are arranged on the chassis. A conveying device is arranged between the harvesting and crushing device and the corn chamber. A peeler is arranged between the conveying device and the corn chamber. According to the technical scheme, the backpack corn harvester has the advantages that slightly loaded corn can be harvested into an ear picking device smoothly by the aid of a puller chain, the problem that stress of a snapping roll is uneven since a great amount of corn straws are accumulated in front of the snapping roll is solved, corn ears conveyed by the conveying device enter the additional peeler to be peeled prior to entering the corn chamber so that the problem of peeling the ears is solved, labor intensity is reduced, follow-up unloading of the harvester in large-area operation is achieved by the aid of a secondary ear conveying device mounted on the rear left of the harvester and an ear conveying device mounted below the peeler, unloading time is reduced, and operating efficiency is improved.