The invention discloses zanthoxylum schinifolium processed peanuts and a preparation method thereof. The zanthoxylum schinifolium processed peanuts are prepared as follows: dry-fried peanut kernels are stir-fried in vegetable oil and ingredients and then are braised with dried shallots. Specifically, the zanthoxylum schinifolium processed peanuts are prepared from components of raw materials in parts by mass as follows: 6-10 parts of vegetable oil, 60-85 parts of peanuts, 0.5-2 parts of ginger slices, 3-8 parts of zanthoxylum schinifolium, 3-6 parts of shredded chili, 0.5-2 parts of garlic, 0.2-0.8 parts of sugar, 0.5-1.5 parts of salt and 0.3-1.2 parts of the dried shallots. Dry-frying, frying and braising of the peanuts are combined, moisture can be rapidly drained during dry-frying, theoriginal flavor of the peanuts is kept, the peanuts are fried with the ingredients at the high temperature to be spicy and tasty; dry-frying and frying are combined, the oil consumption can be reduced, the frying time can be shortened, and the peanuts taste crisp; during braising, the dried shallots are added to increase the aroma, so that the peanuts are better flavored, are spicy, aromatic andtangy, have little irritation and are tasty, healthy and functional snack food.