戲曲文物文獻史料的搜集整理是戲曲文化研究的重要基礎工作,也是建構中國戲曲文化史不可或缺的重要環節。谷曙光著《梨園文獻與優伶演劇:京劇昆曲文獻史料考論》在學術上的創新主要體現在:戲曲文獻觀念的重要突破、研究視野的多元拓展以及踐行"大膽質疑、小心求證"的追尋真理的方法三個方面。戲曲的綜合性,決定了戲曲文獻的多元性和研究的多維度,亦決定了研究戲曲更需要"通才",谷曙光便是致力于戲曲貫通研究的先行者之一。

The collection and editing of historical materials are the basis for the study of Traditional Chinese Xiqu, and an indispensable part of the construction of the history of Traditional Chinese Xiqu as a whole. In his Bibliography and Theatre of Traditional Chinese Xiqu, Gu Shuguang has made several breakthroughs. He has developed the idea of the bibliography of Traditional Chinese Xiqu; he has broadened the horizon of research;and he has practiced the three aspects of the principle of "bold challenge and scrupulous proof. " Xiqu being a comprehensive art, its bibliography is diverse, and the related research is multi-dimensional. Therefore,"general knowledge and talents" are essential to the Xiqu studies. Gu Shuguang is a pioneer scholar for the all-inclusive study of it.