Lentinus edodes is the fruiting body of the fungus edible mushroom of the phylum Fungus, belonging to the Basidiomycetes Agaricaceae, and is one of the world’s famous edible fungi. It contains a unique flavor substance- shiitake essence, which forms a unique mushroom fragrance, so it is called “mushroom”. The mushroom cap is umbrella-shaped with a diameter of 3 to 6 cm. The appearance is yellowish-brown or dark-brown, with white gills, yellow stalk, and cotton-like white scales, which are not obvious after drying. Shiitake mushrooms grow in winter (from Lidong to before Qingming). The main production areas are in the forest areas of Zhejiang, Fujian, Jiangxi, Anhui and other provinces. Because of its rich nutrition, refreshing aroma and delicious taste, it is known as “the king of mushrooms “, “the queen of mushrooms ” and “the crown of vegetables”. Not only is it ranked above straw mushrooms and oyster mushrooms , but it is also known as the “Queen of Plants” and one of the “Mountain Treasures”. Shiitake mushrooms are delicious and fragrant, and are excellent edible fungi. Shiitake mushrooms are fragrant, thick flesh, smooth surface, uniform size, yellowish-brown or black-brown color, slightly white frost on the surface, compact and white folds, short and thick stalk, dry, mildew-free, and non-mold. Broken ones are of good quality.