Abstract:This article proposes the concept of the submarine integrated information network topology structure diagram, analyzes the typical seabed information networks at home and abroad, especially the construction and development status of seabed observation networks, and proposes the idea of building a seabed comprehensive information network that integrates communication, observation, and detection functions. The composition, various functions, and network topology structure of the seabed comprehensive information network are studied, and remote power supply, underwater connection boxes, etc. are discussed Key technologies in the construction and use of underwater comprehensive information networks, such as information transmission, deployment, and maintenance.