The number of international schools has been dramatically increased during the past decade. As a result, an international school industry has emerged with a lot of diversities in these schools’ governance and management, curriculum and background of student/teacher population. This paper examines the historical development, types, curriculum, characteristics of student/teacher population of international schools globally and challenges they are facing at the moment. In particular, China is used as an example to illustrate the recent development of international schools in Asian region. Based on the above discussion, conclusions and its implications for Taiwan are drawn.