The invention relates to a hanging dry jujube harvesting device. The hanging dry jujube harvesting device comprises a mobile device, a collection device and a classification device. The mobile device comprises an inner extensible fence and an outer extensible fence, the two ends of each of the inner extensible fence and the outer extensible fence are provided with stand columns, the inner extensible fence and the outer extensible fence are connected through a connecting rod, the two ends of the connecting rod are connected to two opposite stand columns respectively, the lower end of each stand column is provided with a roller, the classification device is located at the left end of the mobile device, and comprises a classification plate, a big jujube box and a small jujube box, the height difference of the stand column far from the classification device and the stand column close to the classification device is H, 0 m<H<=0.5 m, the collection device is a flabellate smooth cloth, and the smooth cloth is arranged between the two stand columns. According to the hanging dry jujube harvesting device, though the arrangement of the collection device under a jujube tree in advance, the hanging dry jujubes directly fall on the collection device, the labor intensity of person manual picking is reduced, the classification box can classify the big jujubes and the small jujubes, multiple purposes are added, and the work efficiency is improved.