Sea cucumbers are marine animals belonging to the Holothuroidea class. They have cylindrical, soft, and flexible bodies, with a rough, hollow outer shell. Sea cucumbers are widespread in various waters throughout the world, from shallow to deep waters. Sea cucumbers have an important role in the marine ecosystem, because they help maintain environmental balance by cleaning the seabed from organic remains. They also serve as food for various marine animals, such as fish, turtles and squid. Apart from that, sea cucumbers also have high economic value, especially in East Asia, including Indonesia. Sea cucumbers have long been used in traditional medicine as a medicine that is believed to have various health benefits. The nutritional content in sea cucumbers, such as protein, collagen and minerals, is believed to be able to improve the immune system, speed up wound healing and prevent various diseases. However, excessive hunting for sea cucumbers to meet market demand has caused a decline in sea cucumber populations in a number of areas. Therefore, protection of sea cucumbers and conservation efforts are important to maintain the sustainability of this type of marine animal in the future. Thus, sea cucumbers are not just ordinary marine animals, but have an important role in the marine ecosystem and have high economic and health value for humans. Efforts to conserve sea cucumbers need to continue so that their existence is maintained for future generations.