Chicken oil fungus is a fungus belonging to the Chicken oil fungus genus in the Chicken oil fungus family, also known as egg yolk fungus, yellow fungus, apricot fungus, etc. Chicken oil mushroom fruiting body is fleshy, trumpet shaped, apricot yellow to egg yellow. The cap is 3-10 centimeters wide and 7-12 centimeters high, initially flat, gradually concave, with an extended edge, wavy or petal shaped, and rolled inward. The mushroom meat is slightly thick and egg yellow. The gills are angular, narrow, and extend downwards to the stem, branching or interwoven with transverse veins to form a network. They are the same color as or slightly lighter than the cap. The stem is 2-8 centimeters long and 5-8 millimeters thick, cylindrical in shape, sometimes slightly thinner or larger at the base, and is the same color or slightly lighter than the cap. Spores are elliptical or oval in shape, colorless; Spore print is yellow white.