Universal wild edible mushroom isolation culture medium and preparation method thereof

The invention discloses a universal wild edible mushroom isolation medium and a preparation method thereof, and belongs to the technical field of edible mushroom cultivation. The medium is prepared from the following raw materials in parts by weight: 1000 to 1200 parts of a potato extracting solution, 18 to 22 parts of monosaccharide, 25 to 35 parts of gel and 1 to 3 parts of peptone. The preparation method of the medium comprises the following steps: mixing raw potato granules with water, and then conducting boiling and filtering to obtain the potato extracting solution; and taking the potato extracting solution, adding monosaccharide, gel and peptone, carrying out stirring while heating, and conducting cooling after boiling. The variety of the raw materials of the medium is reduced by half compared with that of the medium used nowadays, strong acid and alkali are not used, and the safety risk of production is removed; the medium is suitable for strain separation of various common wild edible mushrooms, myce