The Miyakojima is located among the southwest of Ryukyu Islands. It is a remote island in the area of less than 160 square kilometers of coral reefs. Due to its strategically location and enormous marine interests under it, it often grows international controversy since the 90 's. The purpose of this article is to re-examining Miyakojima in the context of Northeast Asia. It also intends to offer suggestion for future research from the viewpoint of International Affairs.