The issue of island ecological environment deterioration has been a major concern worldwide, and is considered one of
the critical problems crying out for solutions in the ocean ecosystem research. Based on principle of social equity,
Payments for Environmental Services(PES) has, by far, become an effective means of internalization to settle the
external problems of public goods in recent years. Taking islands as the object, this paper is to expound the cocept of
island PES , and to reveal the mechanism of island PES with the purpose of constructing the PES mechanism of island
with multidisciplinary methods, such as the marine ecology, ecological economics combined with remote-sensing data.
This study will lay the theoretical foundation for ameliorating island environmental protection policy, and provide
guidance to the government in making island development strategy and PES programs.