The invention discloses a soup-stock flavoring and a preparation thereof. The soup-stock flavoring contains the following components by weight: 38.0-42.0 parts of yeast extract, 16-20 parts of salt, 8.0-12.0 parts of monosodium glutamate, 0.8-1.2 parts of disodium 5'-ribonucleotide, 0.018-0.022 parts of turmeric, 0.008-0.012 parts of ginger essential oil, 18.0-22.0 parts of glucose, 8.0-12.0 parts of maltodextrin, and 1.0-1.4 parts of ethyl maltol. The soup-stock flavoring of the invention, using the yeast extract as a raw material and added with other flavouring materials, has advantages of delicious taste and abundant nutrition. The product soup-stock flavoring can be used for cooking soup stock, and increases abundant mouthfeel and nutrition of the soup stock. And the product is convenient and fast for using, and can reduce boiling and bone and meat boiling time.