China Launches World-First Floating Island Research Platform

China has reached a significant milestone in marine engineering with the official launch of the "Open-Sea Floating Island," described as the world’s first ultra-large floating research platform. Developed by Shanghai Jiao Tong University (SJTU), the facility was formally introduced in Shanghai on Saturday as part of a national science and technology infrastructure project.

The platform is a massive, all-weather resident facility designed to support long-term scientific operations in the deep sea. It has a displacement of approximately 78,000 tonnes, which makes it comparable in scale to a medium-sized aircraft carrier. Standing as tall as a 30-story building, the structure is designed to remain stable and operational even in the face of level-17 typhoons, where wind speeds can exceed 250 kilometres per hour.

Engineering of the "Open-Sea Floating Island" utilizes a semi-submersible twin-hull design. This configuration provides the necessary stability for full-scale testing of heavy marine equipment. According to technical specifications, the platform can deploy equipment weighing up to 300 tonnes to depths of 6,000 metres. Furthermore, it is equipped to support scientific exploration at depths of up to 10,000 metres, allowing researchers to reach the most remote parts of the ocean floor.

The project is structured into three primary systems: the central floating platform, ship-based laboratories, and shore-based support facilities. Together, these systems create a comprehensive network for marine research, resource exploration, and equipment testing. SJTU has also established a dedicated institute for deep-sea science and engineering to manage the operations and data generated by the facility.

Beyond basic research, the platform will serve as an open-sea testing ground for deep-sea mining systems and offshore oil and gas facilities. Its role is expected to extend into disaster prevention, as it will carry advanced instruments to improve the accuracy of typhoon forecasting. The locals and the international scientific community expect the facility to be fully completed and operational by 2030.

The facility also features a massive "moon pool" opening in the hull, which is large enough to allow for the passage of significant marine life or large-scale underwater vehicles. This feature is critical for the deployment of submersibles and heavy sensing equipment into the deep ocean where light cannot penetrate.

While the primary mission is scientific, including the study of marine ecosystems and the evolution of life in deep-sea environments, the platform’s robust construction has drawn attention. Reports indicate the structure uses specialized "sandwich" panels designed for high-pressure environments and structural resilience. The project remains a central part of the national 14th five-year plan for scientific development.