With the rapid development of mobile communication technology, smart phone and mobile broadband become the trend and appear everywhere in our daily live. The explosive traffic growth spurs the need of more bandwidth to provide better quality wireless communication. Therefore, how to allocate this limited resource of spectrum is undoubtedly important. In this article, we discuss the development of the mobile communication spectrum management in different countries, including Taiwan. The auction expected to be accomplished in Taiwan this year is illustrated. Furthermore, we focus on the following spectrum planning in Taiwan.