Formula and preparation method of electronic cigarette tobacco tar

The invention discloses a formula and a preparation method of electronic cigarette tobacco tar. The formula comprises essence and a tobacco tar base, wherein the tobacco tar base comprises a solvent and a greasiness reducing combination agent, wherein the solvent comprises glycerol, propylene glycol and water, the greasiness reducing combination agent comprises nicotine, organic acid and tobacco polyphenol, the weight percentage of nicotine in the tobacco tar base is 2-5%, the molar ratio of organic acid to nicotine is (1-3):1, and the weight percentage of tobacco polyphenol in the electronic cigarette tobacco tar is 0.0001-1%. According to the electronic cigarette tobacco tar disclosed by the invention, the greasiness reducing combination agent is added into the solvent, and comprises tobacco polyphenol, so that the tobacco polyphenol and derivative products thereof entering the oral cavity of a consumer can generate a relatively strong effect with taste buds when the consumer smokes, the perception of the c