▎ 摘　　要

NOVELTY - Preparing heating coating involves providing silicate, metal oxide, organic silicon resin, heating filler, solvent, and water, mixing the silicate and metal oxide, performing sintering treatment to obtain the first mixture, mixing the organic silicon resin and solvent to obtain second mixture, adding the first mixture and the second mixture to water to obtain a third mixture. The heating filler is added to the third mixture to obtain heating coating for electronic cigarette heating tube, where the heating coating for electronic cigarette heating tube comprises an inorganic net-like structure of silicon-oxygen-silicon as main chain, organic silicon resin filled in the inorganic net structure of silicon-oxygen-silicon as main chain, metal oxide, and heating filler, porton of silicon-oxygen-silicon of the inorganic net-like structure of silicon-oxygen-silicon as main chain is combined with the metal oxide. USE - Method for preparing heating coating used for electronic cigarette heating tube. ADVANTAGE - The method does not easy to crack, has high temperature resistance, cold and heat impact resistance, high hardness, good adhesion, and long service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an electronic cigarette, comprises a smoke tube, a solid smoke contained in the smoke tube, a heating coating coated on the smoke tube and a power supply electrically connected with the heating coating.