In order to solve the above problems, the method for preparing a concentrate for seasoning using the open fire of the present invention comprises: an open fire grinding step of preparing and washing 100 parts by weight of the open fire； A heating step of mixing 100 parts by weight of water with respect to 100 parts by weight of the pulverized dog fire and then heating it at a temperature of 70 to 90 ° C. for 0.5 to 1.5 hours； A first decomposition step of preparing a primary decomposition product by mixing 0.1 parts by weight of proteolytic enzyme with respect to 100 parts by weight of a dog-opened material to a material subjected to a heating step, and then stirring the mixture at a temperature of 40 to 60 ° C. for 4 to 6 hours； A first deactivation step of deactivating the first decomposition product in a bath water bath for 5 to 15 minutes at a temperature of 80 to 95 ° C； To the material subjected to the first deactivation step, 0.3 to 0.7 parts by weight of papain and 0.1 to 0.3 parts by weight of bromelamine were added to 100 parts by weight of the open fire, followed by stirring at a temperature of 40 to 60 ° C. for 4 to 6 hours. A second decomposition step of preparing a seafood； A second deactivation step of deactivating the secondary decomposition product in a bath water bath for 5 to 15 minutes at a temperature of 80 to 95 ° C； Concentration step of producing a concentrate by concentrating the secondary decomposition product until the 45 ~ 50 brix using a concentrator under the vacuum degree 600 ~ 800 mgh, 40 ~ 70 ℃ conditions. According to the present invention, by preparing a concentrate and powder for seasoning by using a dog-fire containing a large amount of amino acid, you can feel a refreshing and cool taste when used as a seasoning raw material, glycine and alanine among the major components of dog-fire By using sweet substance to make sweet taste, it is possible to reduce the amount of ingredients such as sugar when cooking food. It can be useful
