The invention provides a defective product discharging mechanism which comprises a discharging drive a and a discharging drive b connected to the discharging drive a, wherein the discharging drive b is further connected to a gripping jaw assembly; and a repairable product box and an unrepairable product box are arranged below the gripping jaw assembly. The defective product discharging mechanism provided by the invention has the advantages that defective products can be automatically classified according to testing results, and then the production cost can be reduced.