Pleurotus ostreatus is one of the edible fungi cultivated artificially in Europe and America, and it is also one of the edible fungi recommended by FAO to developing countries. Pleurotus ostreatus is cultivated with a wide range of raw materials (straw, wheat straw, sawdust, flax chips, etc.). ) and high yield (3 ~ 30 kg/m). )。 Fresh mushrooms have rich fragrance, soft taste, crisp and tender quality and good palatability. The price is also high (American fresh mushrooms are 4 ~ 7 USD/kg). Although there are wild Pleurotus ostreatus in Yunnan, Jilin and Tibet (Mao Xiaolan, 1993). But ... there was no domestication and cultivation. In 1980s, Xu Xiulian and others from the Institute of Edible Fungi of Shanghai Academy of Agricultural Sciences visited Poland. They introduced strains and tried to plant them successfully, but they didn't popularize them. In recent years, Yan Shuwan of Sanming Institute of Fungi has carried out cultivation research. Get good benefits and gradually expand the scope of promotion. This paper first introduces the basic knowledge of Pleurotus ostreatus. 1. Taxonomic status Pleurotus ostreatus belongs to basidiomycete, layer. Mushrooms, mushrooms, mushrooms. 1922 was first discovered and named in the United States, and then found in Europe, Japan and China. In 1960s, Germany began to try planting (Joachim Pusher, 1969), followed by Poland (Szudyga, 1973), Czechoslovakia (Stanek, 1974) and Hungary (Balazs,/kloc-0). At present, the United States, western Europe and the Commonwealth of Independent States have also begun to cultivate. Although it was introduced late in China, it has great development potential. Pleurotus ostreatus flow