The invention provides a formula of a grilled fish on paper. The formula is prepared from the following raw materials: rapeseed oil, soybean oil, old gingers, garlic, green Chinese onion, shallots, onions, watercress, cooking wine, rice wine, capsicum frutescens, passion fruits, amomum tsao-ko, amomum cardamomnm, zingiberaceae alpinia galangal, myrcia, vanilla, valeriana tangutica batal, purple perilla, peppermint, kaempferiae, clove, fructus amomi, cardamun, murraya paniculata, pericarpium citri reticulatae, anise, foeniculum vulgare, aniseed, cinnamon, salvia farinacea, radix lithospermi, red camphor oil, chillies, pickled chillies, capsicum frutescens, pickled mustard-green, bruised ginger, minced garlic, hot and spicy sauce, oyster sauce, peppers, bean oil, cumin, sesame oil, black pepper, monosodium glutamate, chicken powder, white sugar, folium mori, peach kernel, eucalyptus leaves, burdock and chaenomeles speciosa. The invention also provides a preparation technology of the grilled fish on paper. The preparation technology concretely comprises the processes of refining old oil, firing ingredients of the grilled fish, covering the fish by tinfoil, and baking. The grilled fish prepared by the technology can be used for preventing hypertension, hyperglycemia and hyperlipidemia as well as improving immunity, thus being suitable for mass production in restaurants, and the like.