The invention belongs to the technical field of seasonings, and especially, relates to fungus essence and a manufacturing method thereof. The fungus essence comprises: by weight, 8 to 15 parts of an edible fungus mixture, 35 to 45 parts of monosodium glutamate, 25 to 35 parts of common salt, 5 to 10 parts of maltodextrin, 5 to 10 parts of starch, 5 to 10 parts of sugar, 1 to 5 parts of I+G, 1 to 5 parts of yeast extract, and 1 to 3 parts of flavoring essence, wherein the edible fungus mixture is prepared from mushroom, pine mushroom and oyster mushroom by mixing according to a ratio of 5: 3: 2. The fungus essence has a fresh and fragrant flavor, a rich taste and a high nutritive value. The manufacturing method of the fungus essence comprises the following steps of 1, preparing the raw materials, 2, preparing the edible fungus mixture, 3, mixing by stirring, 4, carrying out granulation to obtain a fungus essence crude product, and 5, drying by an oven to obtain a fungus essence finished product. The manufacturing method of the fungus essence has simple processes and reduces a production cost.