Abstract: Against the backdrop of "peak carbon dioxide emissions" and the pursuit of "carbon neutrality", there is an increased demand from the government for the comprehensive utilization and clean production of natural gas. This paper elucidates the procedures involving in the generation of carbon and hydrogen from natural gas, while highlighting the drawbacks of conventional production methods.The inefficient utilization of hydrogen and carbon elements leads to the squandering of potential resources. The technology of methane pyrolysis has the potential to achieve simultaneous production of hydrogen and carbon, while avoiding direct emission of carbon dioxide. This feature has garnered significant interest due to its notable economic and environmental benefits. This paper provides a summary of four distinct technologies for the co-production of hydrogen and carbon from natural gas. The technical principles, process flow, catalytic system and tail gas emission of each technology are discussed, and a comparative analysis of their respective advantages and disadvantages is presented.Two promising hydrogen-carbon co-production technologies are the melting method and plasma method, which have the advantage of not emitting greenhouse gases during their operation. These methods represent an ideal approach for hydrogen-carbon co-production of natural gas. Furthermore, this paper proposes recommendations for the prospective technical advancements and research orientations pertaining to the co-production of hydrogen and carbon from natural gas.