Black fungus is one of the unique mountain treasures in northeast China. It contains eight kinds of amino acids and vitamins necessary for the human body. It has high nutritional value and certain medicinal value. Black fungus is rich in colloid, which has a good moisturizing effect on the human digestive system. It has the functions of washing intestines, moistening intestines. The polysaccharide in Black fungus  has anti-tumor activity, It has a certain preventive effect on tumors.