The beautiful Penghu Archipelagos is a prefecture which has most amount islands of our country. It has about ninety islands, but all of the islands, uninhabited islands are about seventy- one. They have unique features. In recent years, the issue of island was very important on international. Because of that, many countries organized international conference of island continually. They wish they can have a common view in development and idea of island. That is sustainable management. The islands are very special. So they are important heritage of people and everyone think islands are very important. But the damage of islands was to be there for all to see. Our country was not to pay much attention to the issue of island, So we have not the administration of archipelagos and laws or regulations, For this reason, this study applies the major research methods including on-site observation, literature review and in-depth interview. Through the major research methods, the study found some question of Penghu Archipelagos as tourism, smuggling, geography management and the fisherman of China to operator in our waters. All of those questions are about human activities, and we have not complete policy and education of archipelagos. Therefore, the study also analyze the questions for Penghu Archipelagos with SWOT method. Some archipelagos conservation and management cases discussed in this study include China, Indonesia, Japan and Finland. With this idea of other country, the thesis then makes a proposal to protect archipelagos in Penghua. Penghua Island didn¡¦t have the question of sovereign rights, so it didn¡¦t have international dispute in management. But the other remote islands (Kinmen, Matzu, Dongsha and Nanshn)have very long distance with Taiwan, so they have some question of sovereign rights. Many countries make improvement in their question of archipelagos, and those questions will get better solutions in the future, All of the suggests to be include in follow research, that will make the literature on archipelagos more exciting.

博士(法学) / Doctor of Laws / 同志社大学 / Doshisha University