深海光电复合缆是构成海底观测网的主干部分,用于连接海岸基站与海底接驳设备,实现它们之间的电能供给和通信数据传输。主要介绍了适用于海底观测网试验系统的深海光电复合缆的结构选择依据和性能设计。 Deep-sea optical composite cable is the backbone of the undersea observatory network, which is used to connect coastal base station and seafloor connecting equipment to realize the electric energy supply and communication data transmission between them. The structural selection basis and performance design of deep-sea optoelectronic composite cable suitable for sea observation network test system are mainly introduced.