The construction of marine engineering is carried out using composite materials made of carbon fiber. In order to solve the problems of seawater erosion of steel bars and high transportation costs over long distances, it is primarily used as tendons and structural parts in place of traditional steel building materials. For instance, it has been used on offshore islands, reefs, docks, and floating platforms.

Carbon fiber composite materials can also be used to repair and reinforce submarine pipelines and pipe strings in marine engineering. Generally, carbon fiber composite materials are repaired using carbon fiber cloth, epoxy resin, and other resin materials with high strength and adhesion to adhere to the repair surface. As a result, it is thin and light, it is highly reliable and durable, it is convenient to construct, it can adapt to different shapes, and it has a number of significant advantages.