Abstract：This paper reviews the development of carbon black prepared by thermal plasma process and low temperature plasma process. It was found that the preparation of conductive carbon black by thermal plasma has the advantages of high conversion rate and well-developed product structure, but the problems of equipment burden caused by high temperature and electrode loss need to be solved urgently;while the low-temperature plasma method has the advantages of low reaction temperature and lower energy consumption versus the disadvantages of low conversion rate and serious carbon deposition. Although these two processes need to be improved, but they are better than the traditional combustion process in all aspect. Plasma pyrolysis of methane can not only prepare a variety of carbon nanomaterials, but also obtain precious chemical raw materials such as hydrogen and acetylene.Due to the abundant natural gas resources in our country, the plasma technology has great potential and needs further development.

Keywords： plasma; conductive carbon black; methane