The invention relates to an automatic PIN drilling machine. The drilling machine comprises a distribution control box, wherein a vertical worktable is arranged on the distribution control box; a vertical rotating disc is arranged on the worktable; a power unit of the rotating disc is connected to the distribution control box; a plurality of product carriers are uniformly arranged on the rotating disc; a drilling mechanism matched with the products loaded on the product carriers is arranged on the worktable; the drilling mechanism comprises an axial drilling device and a radial drilling device which are arranged according to a clockwise direction; and the radial drilling device and the axial drilling device are connected to the distribution control box. According to the drilling machine disclosed by the invention, the rotating disc is vertically arranged, the plurality of product carriers matched with the PINs are uniformly arranged on the rotating disc, and the axial drilling device and the radial drilling device matched with the rotating disc are respectively arranged at different stations of the rotating disc, so that the processing of two hole sites of the product is completed at a time, the processing efficiency is greatly improved, and the time cost can be saved.