It is reported that Black fungus cultivation scale has reached 20 thousand square meters in Delin Edible Mushroom Professional Cooperative of Yian county. The cooperative based on the local condition to grow Black fungus with high quality, free-pollution and organic. Their products are sold well. Their Black fungus has two growth circle in a year, and each growth circle they cultivate 200 thousand spawn bags. The cooperative plans to expand the cultivation scale to 70 thousand square meters.