Sea cucumbers are divided into light cucumbers and spiny cucumbers, among which the black cucumber belongs to light cucumbers, therefore, the difference between the two cucumbers is mainly based on the difference in appearance and nutritional value. 1. appearance: the surface of the black cucumber has no spines, is smooth, mostly black, round in shape, thick meat and thin skin. 2. On the other hand, the spiny ginseng has irregularly arranged conical spines, mostly black-brown, cylindrical and with thicker walls. 2. Nutritional value: The nutritional value of spiny ginseng is higher than that of oyster ginseng, which is high protein, low fat and low cholesterol food, so patients with high blood pressure and coronary heart disease can also eat it in moderation, and it also contains chondroitin sulfate, amino acids, vitamins and trace elements such as iron and zinc. Compared with the spiny ginseng, the nutrients contained in the ginseng are lower; 3. Other: In general, the ginseng is sold at a lower price and is consumed as a common ingredient in cooking. On the other hand, spiny ginseng is sold at a higher price because it is not easy to obtain, has a higher nutritional value and has a certain tonic effect.