Nostoc flagelliforme is sweet and cool, and has certain medicinal value. Diuretic, antitussive, detoxicating, and nourishing effects, and has certain curative effects on treating hypertension, gynecological diseases, chronic tracheitis, and promoting wound healing. Nostoc flagelliforme is tender, soft and crisp, refreshing and moist, and has no peculiar smell. Add a small amount of Nostoc flagelliforme to chicken, duck and mutton fishy soup, or add Nostoc flagelliforme to squid and belly tip to make soup, which is delicious and palatable. Nostoc flagelliforme can be eaten in various ways. If Nostoc flagelliforme is washed and soaked, steamed in a cage, cut into pieces and mixed with shredded ginger, chopped green onion, soy sauce, vinegar and sugar, it is sweet and sour, fresh and crisp, and it is an excellent cold dish with wine.