Sea cucumbers are echinoderms, and there are more than 20 kinds of edible varieties, such as Meihua Ginseng, Sea Cucumber, Wushen Ginseng, Guangshen Ginseng, Guashen Ginseng and Yuzu Ginseng, which have high nutritional value. Dry sea cucumber contains 76.5% protein, 1. 1% fat, inorganic salts, sugars, phosphorus, iron, iodine and other nutrients. In addition, sea cucumber has high medicinal value. According to medical records, sea cucumber has the function of tonifying kidney and replenishing essence, and has certain curative effect on treating tuberculosis, hemoptysis, aplastic anemia and diabetes. Sea cucumber contains an acidic mucopolysaccharide, which can inhibit the growth and metastasis of malignant tumors and is favored by people. According to the survey, there are more than 20 kinds of edible sea cucumbers in China, among which Stichopus japonicus, Stichopus japonicus, Stichopus japonicus, Stichopus japonicus, Stichopus japonicus, Stichopus japonicus, Stichopus japonicus, Stichopus japonicus, Stichopus japonicus, Stichopus japonicus, Stichopus japonicus, etc. ? Fish, bighead carp and dark plum have high economic value. Stichopus japonicus is also called "Radix Adenophorae". Stichopus japonicus, with a cylindrical body and a body length of 20-40 cm. There are 20 antennae around the front port. There are 4-6 rows of bone spurs on the back and 3 rows of tube feet on the abdomen. Body color yellow brown, black brown, green brown, pure white or gray, etc. I like the fine sand seabed and the bottom of the rock reef with slow and stable water flow and abundant algae. Sleep when the water temperature is high in summer. When the environment is not suitable, the phenomenon of sewage discharge appears. Strong regeneration ability, can be regenerated after being damaged or cut. Edible. The northern coast of China produces a lot, which can be cultivated artificially. Japanese ginseng, Stichopus japonicus. The largest species of sea cucumber, with a body length of up to l meters. The dorsal spines are very large, and every 3- 1 1 root spines form petals at the base, hence the name "Plum Blossom Ginseng". It is also called "pineapple ginseng" because it looks like a pineapple. The ventral surface is flat, and the tube foot is small and dense. The mouth is slightly inclined to the ventral surface, and there are 20 tentacles around it. The back is orange-yellow or orange-red, scattered with yellow and brown spots; The abdomen is reddish; The tentacles are yellow. It often inhabits coral sand bottom with a depth of 3- 10 meter and a small amount of seaweed. Hidden fish (Carapus hoemi) often inhabit cloaca. Distributed in the southwest Pacific Ocean. My country is in Xisha Islands. It is one of the best edible sea cucumbers in the South China Sea because of its large size and good quality. Cucumber, also known as "cucumber", belongs to Cucurbitaceae. Shaped like a sea cucumber. It is generally taupe, but there are also dark brown, deep purple or yellow-white ones. The body wall is fleshy and the surface is smooth. There are 10 tentacles around the mouth. Living in the sea. Edible.