In the 21st century, China attaches great importance to the development of the ocean and its strategic significance for China's sustainable development and security. Therefore, the development of ocean engineering and science and technology is widely concerned. The Chinese Academy of Engineering has successively organized Major Consulting Projects of "Strategic Research on China's Marine Engineering and Scientific and Technological Development" and "Strategic Research on the Development of Key Projects to Promote the Construction Marine Power" . On the basis of the research in various key professional fields, the project has formed the following basic understanding. The project team put forward the strategic thinking of China's marine engineering and science and technology development, including the development principle of "land and sea integration, advanced deployment, innovation driven, ecological civilization, military civilian integration", the development direction of "cognition, use, protection, management of the ocean", the overall goal of "building a strong country in marine engineering technology as the core, supporting the rapid development of modern marine industry".