| Renaming ethnomusicology is a new issue of the music research in the 21(superscript st) century. In fact, the scholars who are interested in the music research in the new century should understand that the ethnomusicology which has been independently developing since it departed from the European "musicology" hundred years ago, tends to return to the main stream of "musicology", due to enlargement, enhancement and changes of the ethnomusicology in the research domain, objects and disciplines. Whether ethnomusicology should be renamed or not remains an important issue, but the temptation to look back the past deserves the musicologists and the scholars to discuss objectively the relevant subjects. Fifty years ago the ethnomusicology research in the United States departed from European domain and methodology. Being not restricted by old methods, the American scholars have developed many new concepts and methods, resulting in promoting the development of the ethnomusicology to new plateau. It thus becomes the most prosperous discipline. At this time, while the Asian musicologist is facing globalization trend, can they not think how to avoid the European subjectivity and error brought to Asia during the sailing time, not recognize the difference in essence and trait between Asian and Western cultures, not seek to be independent of the European methodology? In other words, if the development of the open Western knowledge and methodology is convincible then it should be opened to all traditional cultures of all the people around the world. We do not deny that although many new theories are emerged in the new century the Western open, interdisciplinary and scientific ethnomusicology remains requisite for training and brings breakthrough and progress to the study of the ethnomusicology, but we must emphasize that the Asia, with its two billion population and many precious music and cultural heritages, should have its own ethnomusicology independent of the Western. There is no direct answer to the renaming issue is provided in this paper, but the key points to focus on the development and changes of the ethnomusicology, to care about the music "ownership" from the Asian music researcher's point of view, and to rethink about the object, domain, method and attitude of the musicological research are contemplated, so that all the important subjects in the new century can be properly treated and the readiness of promoting the ethnomusicology in Taiwan can be achieved.