Abstract:Chongming, the largest estuarine alluvial island in the world, received more and more attention home and abroad because of its ambitious development target of international ecoisland. This paper presents an integrated approach to analyze industrial development by combining SWOT analysis and Diamond Model, which is applied to exploring the feasibility of renewable energy industry development in Chongming Ecoisland. The main findings are: 1) it is not easy for Chongming to develop renewable energy industry in a short term, while a long-term strategy is more feasible. 2) The most important thing in developing renewable energy industry of Chongming Ecoisland is to get staggered development in a coordinated and complementary way; 3) Chongming has good external environment and relatively strong need to develop renewable energy industry; 4) There is lack of factors of production and support from related industries. And Clear strategy and core competence are also absent. 5) Renewable energy industry is of great potential in Chongming if policy is really implemented and external resources are fully utilized.