This paper is a critical review of the studies based on fieldwork of oral narratives and issues and perspectives of ethnographic reasearch. Finding new perspectives of the researches based on fieldnoting, this reviw examines the result and the limit of fieldwork studies accumulated up to the present. Examining the view and the method of the fieldwork for 󰡔Korean Oral Literature Collection󰡕(by The Academy of Korean Studies, vol.1-85, 1980-1992), which was the first organized and sciencetific field research based on network of professors and assistants majored in ‘oral literature’, it was not purposed to take a view of and research ‘oral literature\' qualitatively but to pile up a lot of diverse versions of folktales, folk songs and oral epics(shamans\' songs) quantitatively. So It passed over researcher\'s perspective, relationship between researcher and performers, storytellers\' social position, people\'s interaction in performance community, communicative clues between speakers and listeners and so on. And then It has not been succeeded to later fieldworks critically. Performance-centered approach and studies on storytellers have developed frames and methods of analyzing performance. They have been interested in the context and the condition of performance, the active situation of speech, telling skill, the way storytellers have formed folktales, diverse aspects of communication and interacting among members of community, performers\' relating to social group etc. But there have not been meterials of fieldnoting which have reflected issues of Performance-centered theory and have contained topics of studies on storytellers. So performance-centered approach and studies on storytellers have not born new perspectives of fieldwork research and have become to be text-oriented. It is expected that ethnographic research based on participation observation can deal successfully with problems of previous studies on fieldwork. Ethnographic research reveals relation between researcher and performers, which put up researcher at the surface. Thus it is able to deconstruct the myth of objectivism and present heterogeneity of performance, so it enables hegemony and ideology of discourse to be analyzed.