海洋是国家战略必争领域，海洋强国建设是世界科技强国建设的重要组成部分。坚持科技自立自强，强化海洋领域国家战略科技力量，是推动海洋强国建设的重要手段。研究了世界海洋科技强国一流科研机构发展态势，分析了我国海洋领域国家级科研机构和科技创新基地建设布局，介绍了中国科学院海洋领域机构改革创新的实践和经验，并对强化海洋领域国家战略科技力量提出了思考和建议：要聚焦最紧迫、最真实的国家战略需求，坚持“有所为、有所不为”的理念，在事关我国海洋核心利益的重点方向进行战略布局，以前瞻性、战略性重大科技项目为依托，充分发挥国家作为重大科技创新组织者的作用，为建设海洋强国提供有力的科技支撑。

The marine area is a strategic area of China， and the building of a strong marine nation is an important part of the building of a world scientific and technological power. Adhering to the scientific and technological independence and self-improvement， and strengthening the marine national strategic scientific and technological power are an important means to promote the construction of a strong marine nation. This paper studies the development trend of first class scientific research institutions in the world's marine science and technology powers， analyzes China's construction layout of national scientific research institutions and scientific and technological innovation bases in the field of marine science， introduces the practice and experience of institutional reform and innovation in the field of marine science of the Chinese Academy of Sciences， and puts forward thoughts and suggestions on strengthening the national strategic scientific and technological strength in the marine field. To strengthen the national strategic scientific and technological strength in the marine field， we must focus on the most urgent and real national strategic needs， adhere to the concept of "doing something， leaving something"， make strategic layout in the key directions related to China's marine core interests， rely on forward-looking and strategic major scientific and technological projects， and give full play to the role of the state as the organizer of major scientific and technological innovation， so as to provide strong scientific and technological support for the construction of a maritime power.