The invention relates to an automatic huller for Chinese chestnuts. The automatic huller comprises a single grain pick-up device, an opening cutting device, a primary drying device, a primary peeling device, a secondary drying device, a secondary peeling device, a transmission device and a discharging device, wherein the single grain pick-up device, the opening cutting device, the primary drying device, the primary peeling device, the secondary drying device, the secondary peeling device and the discharging device are sequentially arranged, and the transmission device is used for conveying Chinese chestnuts. The huller is reasonable in structure, integrative in the functions of Chinese chestnut feeding, single grain separation, progressive cutting, primary drying, primary peeling, secondary drying, secondary peeling, electric transmission, discharging and the like, convenient to use, high in mechanical degree and high in peeling efficiency, can carry out continuous operation, reduce the production intensity of workers and provide reliable equipment guarantee for the peeling deep processing of the Chinese chestnuts, and has wide prospect of being popularized in the Chinese chestnut industry.