The core competitiveness of e-cigarettes lies in atomization technology, and the atomizing core, as a core component, its material upgrade has directly promoted the transformation of the user experience. Early cotton atomizing cores had low costs, but they had problems such as uneven oil absorption and easy burning of the core, and the flavor would gradually fade after long-term use. The new generation of ceramic atomizing cores, relying on the advantages of porous structure, not only absorbs oil more evenly, with the atomization efficiency increased by about 30%, but also reduces the generation of burnt smell. In addition, the stability of ceramic materials is stronger, and they are not easy to release harmful substances in high-temperature environments, taking into account both taste and safety. Today, ceramic atomizing cores have become the standard configuration for mid-to-high-end e-cigarettes, and in the future, with technological optimization, further breakthroughs will be made in energy conservation and noise reduction.