Kelp (scientific name: Laminaria japonica), also known as kelp and Chinese cabbage, is an edible algae belonging to the genus Laminaria of Phaeophyta, eukaryotic and multicellular. Kelp originated in Northeast Asia, including the Pacific coast of Russia, Japan and the northern coast of North Korea, and later grew in the oceans off China’s Liaodong Peninsula and Shandong coast. Today, China is the world’s largest producer of kelp. The kelp spores are divided into three parts: fixation device, stalk and band piece. The growth period in the natural environment is two years, and the cultivation period in the planting environment is two years.