The twenty-first century is a century for mankind to all-sidedly understand and make full use of oceans so as to protect our new century conscientiously. Island tourism, especially as a new fashion of the century, is faced with a lot of challenges from environmental conditions. In order to make further use of ocean resources and satisfy the needs of modern human beings pursuit for cultural life of humanities and ecology, the traditional ocean development must be transformed step by step to one of modern ecological-style. Only by really solving bottle-necked problems such as of funds,ecology,structure and systems,and exploring the strategic thought of sustained development, can the transform be accomplished.