Abstract: The article comments on Professor Xu Guoqi's Olympic Dreams: China and Sports, 1895-2008 (hereinafter referred to as Dream) by using the methods of literature review and historical analysis, aiming to provide a reference for the further development of sports history theory. The research shows that Dream, by using the research method of international history and focusing on the dual context of "localization in China" and "internationalization", explores the issue of how Chinese people used sports to seek for national identity, improve national destiny, enhance international status, and move toward internationalization. The ook presents its content like telling a story in a continuous, extendable and down-to-earth way. Dream also has the limitation of ignoring the complexity of historical issues. From the perspective of historical time and historical space, this paper compares the differences between international history and national history in the study of sports history. The historical time of international history has the characteristics of synchronicity and flexibility, and the historical space has been greatly expanded. Future sports history research should integrate the research horizons of international history and national history so as to broaden the research ideology of sports history.

Key words: sports history, Olympic Dreams, international history, research method