East Asia is now experiencing significant economic growth and social change. Integration of East Asia seems an irresistible trend, as East Asian countries are closely interdependent with each other and share many common interests in economic development. This is the internal factor. Externally,globalization and regional integration are also driving force of East Asia cooperation. However, despite of the complementary advantages and group cohesion among East Asian countries, they still face severe challenges brought by global changes. Enhancing the overall status of East Asia in the international arena is a pressing need.