The invention relates to a preparation method for fragrance flavor seafood seasoning. The seasoning is prepared by implementing the following steps: taking dried swim bladder as a raw material; after washing and smashing, soaking the swim bladder, processing with ultrasonic waves and adding water to obtain swim bladder seriflux; adding papayotin into the seriflux for enzymolysis; killing enzyme; adding activated carbon for carbon removal and filtering the mixture to obtain enzymolysis filter liquid; adding water into a reactor filled with ginger powder, reducing sugar, vitamin B1 and five spice powder, heating, extracting, cooling and performing centrifugal filtering to obtain flavor liquid; mixing the enzymolysis filter liquid with the flavor liquid first and adding gourmet powder, salt, Disodium 5'-ribonucleotide and potassium sorbate for blending to obtain seasoning liquid; packaging the seasoning liquid into different bottles to obtain liquid state flavor seafood seasoning finished products or performing spray drying on the seasoning liquid to obtain powdery fragrance flavor seafood seasoning. The preparation method provided by the invention is reasonable in technology, controllable in operation, scientific in sorting and short in preparation time; the seasoning prepared by the preparation method is rich in spiced flavor, natural in seafood taste, intense in fragrance, rich in nutrition and easy to digest and absorb by human body.