The invention discloses a spike automatic feeding machine. The spike automatic feeding machine comprises a spike feeding line, a stepped feeding machine and a discharging mechanism, wherein the spikefeeding line is used for conveying a spike to the stepped feeding machine, and the stepped feeding machine conveys the spike to the discharging mechanism through a stepped feeding mode; the stepped feeding machine comprises a supporting base, and a feeding groove, a stepped feeding plate set, a tilting channel and a material returning inclined plate are sequentially arranged on the supporting basein the horizontal direction; the material returning inclined plate is fixed to the supporting base, and the material returning inclined plate is obliquely arranged downwards towards the material inclined channel; the discharging mechanism comprises a discharging channel communicating with a discharging hole in the inclined channel, and the width of the discharging channel is larger than the diameter of a column body of the spike, and is smaller than the diameter of the head of the spike; and the discharging channel is obliquely arranged downwards, and a material control device is arranged onthe discharging channel. According to the spike automatic feeding machine, the beat type feeding can be realized, and the production rhythm is ensured.