Jellyfish is rich in nutrition, and its fat content is as high as 26% to 30%, which is nearly ten times that of ordinary fish. After processing, jellyfish are delicious and of good quality, all of which are delicacies. The cuttlebone is salty in taste and warm in nature, and it can clear away heat and stop diarrhea. It is also used by the people to treat chronic enteritis, tuberculosis and other diseases.

Jellyfish is delicious. You can soak in water, scrambled eggs, stir-fry and mix pickles. Even the pure sea dragonfly can still be regarded as a good wine.

Haiyan was called "sea salt" by Li, a poet in the Qing Dynasty. There is a poem saying that "a bottle of crab nail is pure yellow sauce, and a thousand fish heads are fine and salty".