In May 2007, the Council for Cultural Affairs in Taiwan organized a conference in commemoration of Yü Dagang's Centennial Anniversary. With "traditional Chinese opera" as its theme, the keynote speech of the conference highlights Yü's contribution to the modernization of Taiwan's traditional operas. It was followed by seven panels on various topics. They are, "New Materials for the Study of Traditional Operas: New Findings and New Perspectives," "Ritual Theatre," "The Music in Traditional Opera," "Traditional Operas in Taiwan," "Theatrical Theory," "The Modernization of Traditional Opera," and "New Interpretations of Old Operas." In General, this conference well illustrates the academic endeavor infused in the field in recent years. The key points of the event are 1) with persistent enquiry into ritual theatre, studies of traditional opera explore its origins, which approach has been widely accepted by the academic circle; 2) newly unearthed archaeological findings help reconstruct and enrich our knowledge of the history of theater. In this respect, the so-called "Shanxi school" still dominates the field; 3) first-hand data collected from field investigation supplement information from existing literature; 4) There are attempts to unearth new information from some long-forgotten literature; 5) while the diversification of theoretical application reflects the inadequate historiography of the theory of traditional opera, it also exposes the researchers' theoretical anxieties; 6) the ten-odd papers on Taiwan's traditional operas indicate that the study of them is gaining strength; 7) the relation between commoners' literature and the construct of a nation is still many scholars' concerns; 8) only through modernization can traditional opera perpetuate and regenerate itself; 9) introduction of new perspectives breathe new life into old styles and old works; 10) reappraisals of the research history include summarizations, reflections, innovations and subversive notions, which means that the research history of traditional theater remains to be re-written.