Pleurotus ostreatus is the tallest of all fungi in Yunnan. Its umbrella cover is dark brown or yellowish, and the edge of the umbrella cover is split radially. The ancients said it was "like a chicken feather", hence the name. Chicken blood is smooth, crisp and refreshing. It is rich in protein, calcium, phosphorus, iron and other nutrients. The dishes cooked with it, whether fried, steamed or made into soup, are fragrant and delicious. Therefore, people who travel to Yunnan take pleasure in tasting this delicious food.