Screw head punch needle

The relates to a screw head punching needle which comprises a main body and a groove formed on the end part of the main body, wherein the center of the groove forms a convex punching head of which the peripheral surface is additionally provided with a vane lower than the punching head. When screw head punching needle of the utility model punches bearing sockets to screw heads, the peripheral surfaces of the bearing sockets form little concave grooves used as pressure releasing points in punching for avoiding the deformation of bearing sockets or stress concentration points formed on end corner positions. The utility model can extend the service life of the punching needle and can enhance the quality of screws.