This paper mainly describes the magical underwater world through the light emitted by underwater creatures. In this paper, the words "bright", "dazzling", "dazzling", "vitality" and "athletic power" are used to describe the strange light on the seabed. These strange lights are emitted by phosphorescent plants such as marine ciliates, chestnut-shaped luminous insects, jellyfish, sailboats, sea moon jellyfish and sea bamboo shoots. The description is exquisite and novel, and the wonderful light on the seabed is written.