The invention relates to the technical field of food processing and specifically relates to a processing method of preserved pomelo peel. The processing method comprises the following concrete steps:(1) selecting high-quality pomelos, removing internal pulp, performing thorough cleaning, cutting the pomelo peel into sheets, strips or dices, and performing kneading with salt for debitterizing; (2)putting the treated pomelo peel into soy milk and performing boiling for debitterizing; (3) boiling auxiliary materials, wherein the auxiliary materials mainly comprise the following raw materials: sage leaves, red peppers, thyme, licorice roots, rhizoma curcumae longae, brazilwood leaves, stevia rebaudiana, maple leaves, honey, citric acid, vitamin C and citric acid; and (4) concentrating the auxiliary materials until the water content is reduced by 20-30%, adding the debitterized pomelo peel, performing uniform stirring, heating and boiling, performing centrifugal separation and drying in asteam drying box, and performing sterilizing to obtain the preserved pomelo peel. The preserved pomelo peel produced by the method is bright in color, soft in texture, sour, sweet and delicious in taste and fragrant in flavor, and has multiple functions of clearing away heat and toxic material, promoting appetite, dispelling the effects of alcohol, keeping youthfulness, beautifying skin, resisting bacteria, expelling worms, expelling phlegm, arresting coughing and the like.