A method for preparing a processed food by using a mackerel, according to the present invention, comprises the steps of: (1) heating a juice (extract type) extractor to be sterilized (2) washing a mackerel, which is the main ingredient, and ginger, jujube, Salicornia herbacea L., onions, Dioscorea batatas Decaisne, Cornus officinalis, Acanthopanax sessiliflorus Seem., Angelica gigas Nakai, Cnidium officinale Makino, Paeonia lactiflora Pall., Rehmannia glutinosa Liboschitz var. purpurea Makino, cinnamon, Crataegus pinnatifida Bge., Glycyrrhiza uralensis Fischer, Euphoria longan Steud., Atractylodes japonica Koidzumi, Machilus thunbergii Siebold & Zucc., Citrus unshiu Markovich and Agastache rugosa O. Kuntze., which are supplementary ingredients (3) extracting a liquid juice (extract type) extract by putting the materials, which are washed at step 2, with unboiled water together into the extractor, which is sterilized at step 1, and heating the same (4) moving the extracted juice (extract type) extract to a sterilized packaging machine (5) removing various suspended solids contained inside the juice (extract type) extract and (6) packaging the juice (extract type) extract into a predetermined packaging container in the packaging machine. There are effects of improving memory and learning abilities by promoting the development and activity of the brain and considerable effects of preventing adult diseases, such as hypertension and arteriosclerosis, and the like by remarkably lowering cholesterol levels.Linvention concerne un procédé de préparation dun aliment transformé comprenant du maquereau, qui comprend les étapes suivantes : (1) chauffage dun extracteur de jus (de type extrait) à stériliser (2) lavage dun maquereau, qui est Lingrédient principal, et de gingembre, de jujube, de Salicornia herbacea L., doignons, de Dioscorea batatas Decaisne, de Cornus officinalis, dAcanthopanax sessiliflorus Seem., dAngelica gigas Nakai, de Cnidium officinale Makino, de Paeonia lac
