中文摘要：

针对区域海洋产业结构相近的问题，对区域海洋战略性主导产业的选择进行了研究，界定了海洋战略性主导产业的概念与范围，分析了其演变规律，并以天津滨海新区为例，运用层次分析一熵值组合赋权法对其海洋战略性主导产业进行了选择，最终确定了以海水综合利用为核心，海洋化工和石油天然气协同发展的海洋战略性主导产业循环经济产业链，旨在推动滨海新区海洋产业结构优化和产业层次的提升，促进天津海洋经济的发展，为同类型区域海洋产业的发展提供借鉴。

英文摘要：

Considering the issue of different regions having similar marine industries structure, this paper aims to select re- gional marine strategic leading industries, and defines the concept and range of marine strategic leading industries. Further- more, by taking Tianjin Binhai New District as an example, it analyzes its evolution discipline through Analytic Hierarchy Process- Entropy Value combination weighting method and selects its leading industries of the marine strategic. Finally, it iuentifies the marine strategic leading industries circular economy industrial chain, which is based on the comprehensive u- tilization of seawater industry and the coordinated development with marine chemical industry and oil, gas industry in order to move forward optimization of marine industries structure and promotion of industries level of Binhai New District, and then boost the marine economy development of Tianjin.