Seasoning powder with natural strong mushroom flavor and preparation method thereof

The invention discloses a seasoning powder with natural strong mushroom flavor and a preparation method thereof. The method comprises the steps of using Agaricus bisporus precooked water or extract, condensing, adding a certain amount of monosaccharide, adjusting the pH to be 6-7, and performing the Maillard reaction at 65-75 DEG C for more than 6 hours to obtain a concentrated solution with the natural strong mushroom flavor, then adding maltodextrin, dissolving the maltodextrin completely, performing spray drying to obtain concentrated mushroom powder, and finally, mixing the concentrated mushroom powder, common salt, sodium glutamate, sucrose, flavor-development disodium ribonucleotide, supercritical CO2 extract of spice, calcium phosphate and starch-maltodextrin mixture, adequately agitating until above materials are mixed uniformly, granulating and drying to prepare the seasoning powder with natural strong mushroom flavor.