Lentinus edodes is a well-known edible fungus. Modern medical research believes that Lentinus edodes contains amino acids, nucleic acids and vitamins needed by human body. It has certain curative effect on rickets in children, such as heart disease, neuropathy, pernicious anemia, intestinal tract, liver cirrhosis and scurvy. Lentinus edodes, also known as Lentinus edodes and Lentinus edodes. Crispy, tender and delicious, it has high nutritional value and medicinal value. It is a leader in edible fungi and enjoys the reputation of "the queen of fungi". It has been paid attention to at home and abroad, and is called advanced "vegetable". It is listed as a rare "delicacy" at the banquet. Mushroom is a kind of health food with high protein and low fat. Its medicinal value has the functions of invigorating stomach and qi, regulating human metabolism, lowering blood pressure and cholesterol, eliminating blood toxicity, eliminating phlegm and promoting the normal growth of children's teeth and bones; Preventing liver cirrhosis, eliminating urethral calculus, and treating gastric cancer. Mushroom fruiting body is equal to a little bigger. The diameter of the cap is 3- 13cm, which is hemispherical at first, nearly flat at the back, sometimes concave in the middle, milky white, smooth at the end or with cluster scale gas, and cracked at the edge when drying. Mushroom meat is white and thick. Pink folds are brown, black, dense, free and different in length. The stalk is short, cylindrical, slightly curved,1-9× 0.5-2 cm, nearly smooth or slightly ciliated, white and solid. The funicle is single-layer, white and membranous, which is born in the middle of the stem and easy to fall off. The tetraspore of basidiospore has dark brown spore imprint. The spores are brown, oval and smooth, 6.5- 10× 5-6.5 microns. Widely distributed. From spring to autumn, it grows alone or in groups in grasslands, roadsides, fields, compost sites, forest clearing and so on. It tastes delicious, and it is an excellent variety cultivated widely at home and abroad and used as medicine and food. Contains vitamins c, B 1, PP, etc. It can prevent beriberi, dyspepsia, capillary rupture, gingival and abdominal bleeding, rough skin and anemia. Contains Campestrin, which can inhibit gram-positive bacteria and negative bacteria and lower blood sugar. Contains alkaloids and polysaccharides such as grass, sweet alkali and choline, and has anticancer effect. There are more than 40 kinds of edible fungi in China, and the output is the second in the world. Mushrooms belong to Basidiomycetes, Agaricus and Agaricus, and are the most widely cultivated edible fungi in the world, with the largest output and consumption. Mushrooms are rich in protein with a digestibility of 70-90%. They are called "plant meat", and the polysaccharide contained in mushrooms has anti-cancer effect. Mushrooms are not only nutritious and delicious, but also rich in lysine, mineral elements, vitamins and enzymes necessary for human body. It belongs to healthy food and is loved by people all over the world. Mushrooms belong to grass saprophytic fungi, which are often used for composting livestock manure such as cow dung, chicken manure, straw and wheat straw. The ratio of carbon to nitrogen in raw materials is 30: 1, the suitable temperature for mushroom mycelium growth is 22-26℃, and the suitable temperature for fruiting body generation is 14- 18℃, which belongs to low temperature and constant temperature fruiting bacteria and is usually cultivated in autumn. Lentinus edodes is a kind of mushroom.