The invention discloses a hardware part perforating machine. The hardware part perforating machine comprises a base. A stretchable rod is fixedly connected to the top of the base, a connecting rod is fixedly connected to the top of the stretchable rod, a motor is fixedly connected to the bottom of the other end of the connecting rod, a connecting plate is fixedly connected to the bottom of the motor, a workbench is arranged under the connecting plate and located on the upper surface of the base, screw holes are formed in the middle of the front face of the connecting plate, threaded rods are in threaded connection in the screw holes, a sliding groove is formed inside the connecting plate, a gap is formed in the bottom of the sliding groove, and two sliding blocks are movably connected inside the sliding groove. By means of the hardware part perforating machine, the positions of perforating nails can be flexibly changed, through holes with different distances do not need to be newly clamped and fixed when being formed, operation is easy, the two through holes can be formed one time through the perforating machine, the consumption time of processing parts is shortened, and the working efficiency is improved.