Hot riveting head structure and binding machine

A hot riveting head structure comprises a riveting head seat internally provided with an installation space, a hot riveting head and a heating structure arranged in the installation space, an opening is formed in one end of the riveting head seat, the hot riveting head extends out of the riveting head seat through the opening along the axial end, and the other end of the hot riveting head abuts against the heating structure. The heating structure is arranged at the bottom end of the hot riveting head, so that heat can be conducted upwards from the bottom end of the hot riveting head, a rivet pressing area of the hot riveting head is heated evenly, and in the assembling process or after repeated use, even if a gap is formed between the heating structure and the hot riveting head, the hot riveting head can be squeezed downwards during rivet pressing work, and therefore the riveting efficiency is improved. Compared with the prior art, the heating structure has the advantage that heat conduction is not affected.