The invention discloses an areca nut processing method which comprises steps of selecting areca nut, cleaning, fermenting, coating surface essence, cutting the areca nut and marinating, wherein fermenting liquid adopted by the fermenting step is prepared from saccharin, sodium cyclamate, stevioside, acesulfame potassium, white sugar, fresh cream, edible salt, taste essence, citric acid, Nipagin complex ester, peppermint oil, glycyrrhizin and water; surface essence liquid adopted by the surface essence coating step is prepared from gelatin, white sugar, edible maltose, ethyl maltol, stevioside, sodium cyclamate, sucralose, aspartame, sucrose oil, brown sugar oil, green plum essence, sophora flower honey essence, jujube essence, sodium dehydroacetate and water; and marinating liquid adopted by the marinating step is prepared from saccharin, sodium cyclamate, stevioside, cesulfame potassium, glycyrrhizin, cold peppermint essence, peppermint oil, peppermint amide, green plum essence, sophora flower honey essence, brown sugar essence, jujube essence and water. The areca nut prepared by the method disclosed by the invention is free from alcohol and strong base, unique in taste and convenient to eat.