The invention relates to the technical field of household supply machining, in particular to a shredding device blade charging machine. The shredding device blade charging machine comprises a conveying machine, a first limiting device and a discharging device. A stamping and shearing mechanism is arranged at one end of the conveying machine. The first limiting device comprises a first limiting mechanism and a second limiting mechanism which are arranged on the two sides of the top of the conveying machine. The discharging device comprises a discharging mechanism, a pushing mechanism and a positioning mechanism. The positioning mechanism is arranged at the end, away from the stamping and shearing mechanism, of the conveying machine. A supporting base is arranged at the position located overthe positioning mechanism. The discharging mechanism and the pushing mechanism are arranged at the two ends of the supporting base correspondingly. A stamping forming mechanism is arranged on one side of the conveying machine. An opening-closing mechanism is arranged at one end of the supporting base. The shredding device blade charging machine can well replace manual operation, manpower is saved, and the production efficiency is greatly improved.