Sea cucumber has certain characteristics in composition, that is, low cholesterol content and relatively little fat. It is a typical food with high protein, low fat and low cholesterol. It is a good food for patients with hypertension, coronary heart disease and hepatitis and the elderly. Eating regularly is very beneficial to treating diseases and strengthening the body. Sea cucumber contains chondroitin sulfate, which is helpful for human growth and development, delaying muscle aging and enhancing immunity. The content of trace element vanadium in sea cucumber ranks first among all kinds of foods, which can participate in the transportation of iron in blood and enhance hematopoietic function. Recently, American researchers extracted a special substance from sea cucumber-sea cucumber toxin, which can effectively inhibit the growth and metastasis of various molds and some human cancer cells. Eating sea cucumber has a good effect on aplastic anemia, diabetes and gastric ulcer. Chinese medicine believes that sea cucumber has the functions of tonifying kidney and replenishing essence, eliminating dampness and strengthening yang, nourishing blood and moistening dryness, and relaxing bowels and diuresis.