In 2006, UNESCO proclaimed the Convention for the Safeguarding of Intangible Cultural Heritage, prompting museums to show increasing concern for Intangible Cultural Heritage. Intangible Cultural Heritage can be recorded, researched and preserved through oral history. Oral history breaks through text limitations, combining video and audio, to narrate the life experiences and stories of people. It includes historical memories, values, languages, and customs of individuals and groups. Oral history also preserves individual memories and viewpoints of periods and events of oppression. The Taipei 228 Memorial Museum consciously applies oral history in its permanent exhibitions, presenting collective trauma from and individual experiences of past events. Which narratives and meanings do oral history present in the Taipei 228 Memorial Museum exhibitions? This is one of the research questions addressed in this study. The Taipei 228 Memorial Museum applies oral history as an exhibition method using different media such as video recordings, sound recordings, and text. Oral history serves to support formal and historical documents, as well as to contrast the thoughts of different social classes. However, the oral histories of the Taipei 228 Memorial Museum are focused on the process of massacre and the state of mind of victims’ families, while ignoring the life experiences and stories of the victims. Finally, the authors propose suggestions for museums applying oral history to exhibitions in terms of representativeness, objectivity, and authenticity.