The invention discloses a gear packaging, conveying and sorting device, and relates to the technical field of gear sorting equipment. When the gear packaging, conveying and sorting device is used, firstly, gears to be sorted are placed in a U-shaped groove in a mounting plate one by one, the two sides of each gear are clamped by gear fixing pieces, a synchronous motor drives a conveying belt to rotate through a transmission wheel, and under driving of the conveying belt, the gear moves towards one end, when the gear moves to the position above a tooth-shaped groove, the gear sinks and is meshed with the tooth-shaped groove under the action of the weight of the gear, then the gear rotates in the tooth-shaped groove, and if the detected gear has blind teeth, the gear generates an upward jumping action in the rotating process. According to the gear packaging, conveying and sorting device, therefore, sorting of unqualified gears is achieved, manual picking is not needed, the labor intensity of workers is greatly reduced, and the problem of sorting errors caused by visual fatigue of the workers can be avoided.