The invention discloses a preparation method of spicy and hot dried loaches. The spicy and hot dried loaches are prepared from the following raw materials in parts by weight: 15-30 parts of chive, 10-20 parts of ginger, 5-15 parts of fennel, 12-20 parts of aniseeds, 2-5 parts of white wine, 1-3 parts of vinegar, 10-20 parts of chili sauce, 1-2 parts of monosodium glutamate, 3-8 parts of edible auxiliary materials, 4-8 parts of edible salt and 20-35 parts of rapeseed oil. The preparation method comprises the following steps: S1, evisceration; S2, pretreatment; S3, pickling; S4, frying; S5, addition of seasonings; S6, baking: putting the loaches added with the seasonings into a baking oven for baking the loaches for 20-40min; and S7, packaging: taking out the loaches in the S6, applying the surfaces of the loaches with the chili sauce, and then conducting vacuum packaging and sterilization, thereby finishing the preparation of the spicy and hot dried loaches. The instant loaches disclosed by the invention have the characteristics of good deodorization effect, spicy, hot and delicious taste, non-fried process, abundant nutrients, convenience in eating, safety and the like, provide an efficient path for exploiting the market of loach products, and solve the problem of single edible function of loaches.