Jellyfish skin contains many kinds of nutrients needed by human body, especially the iodine lacking in people's diet, and it is an important nutritious food. Moreover, jellyfish skin also contains a variety of nutrients needed by the human body, such as acetylcholine and mannan gum.

Jellyfish skin is actually the finished product of jellyfish Jellyfish is a large edible jellyfish, which has been eaten since 1600 years ago in the Jin Dynasty. China is distributed from Liaodong Peninsula to the coast of Guangdong, and jellyfish is an important fishing object in China's coastal fisheries.

Jellyfish skin is umbrella-shaped, translucent, white, cyan or yellowish. The diameter of jellyfish umbrella can reach more than 45cm, and the maximum can reach1m. Eight thickened (shoulder) wrists under the umbrella healed to make the mouth disappear (replaced by a suction cup secondary mouth). There are many rod-shaped and filiform tentacles in the lower mouth and wrist, and there are dense spiny silk sacs on them, which can secrete venom.