The present invention provides an automatic preform feeding system of a blow molding machine and a blow molding machine, which include a wheel device and a clamp device, the wheel device includes a wheel and an arc guard plate, the periphery of the wheel is radial, Several notches are equidistantly arranged, and the circular arc guard plate is arranged on the outer periphery of the runner, which can clamp the preforms in the notches and transfer them to the clamping device. The device is arranged at a different height than the wheel device and partly overlaps each other, having a number of clamps equal to the number of the slots, the centers of the clamps being concentric with and engaging the centers of the slots of the wheel , to clamp the preform conveyed by the notch. The embryo feeding system of the bottle blowing machine of the present invention has a simple structure and improves production efficiency, and is especially suitable for high-output bottle blowing machines.