The main technologies for reforming natural gas to syngas at present are summarized including methane steam reforming,methane partial oxidation,carbon dioxide reforming of methane,coupling reaction of methane steam reforming and partial oxidation,coupling reaction of methane partial oxidation and carbon dioxide reforming,coupling reaction of methane steam reforming and carbon dioxide reforming,and tri-reforming of methane. The catalysts used in the first three typical reactions are focused on. It is pointed out that coupling the three typical reactions,and accompanied with lattice oxygen technology,plasma technology and microwave irradiation technology are development tendency of natural gas reforming to syngas.