In the modern navigation field, the marine network communication cable plays a vital role. These cables are like the "nervous system" of ships and maritime workstations, responsible for transmitting a variety of key data information to support the work and lives of crew, tourists and maritime workers. They are not only the link connecting all parts of the ship, but also the key factor to ensure the safe and efficient operation of buildings such as ships and maritime workstations. In this article, we will deeply explore the definition, type, characteristics, importance and selection principles of marine network communication cables. Let's uncover the mystery of marine network communication cables and understand how they play a key role in the vast ocean!