This dissertation aims to explore the devising and performance of Reminiscence Theatre. It will focus on defining its aesthetic characteristics and its political, social and cultural significance. Two case studies-the works of Uhan Shii Theatre Group in Taiwan and Age Exchange Centre in the U. K. will be employed as demonstrated practices. The exploration is divided into three sections: the politics, poetics, and ethics of Reminiscence Theatre. The chapters on politics investigate the political implications of Reminiscence Theatre in local and global society. I will argue that Uhan Shii Theatre Group presents anti-colonial theatre performances from the perspective of post-colonialism and postcolonial feminism. Age Exchange Centre and Uhan Shii's works both act as a means of social intervention examined from the standpoint of cultural geography with the potential for reshaping social spaces with performances. Their model of cross-cultural communication challenges current theories and practices of intercultural theatre. Their performance of oral histories subverts the dominant historical narratives. The chapters on poetics demonstrate the characteristics of the poetics and aesthetics of reminiscence theatre in the production and reception process. The three main arguments are: firstly, Reminiscence Theatre transforms signs of memory into signs of art in the devising process, resonating with Deleuze's theory in Proust and Signs; secondly, Uhan Shii'sperformance reflects ancient Japanese Wabi-Sabi aesthetics highlighting the transience of time; thirdly, Reminiscence Theatre's reception process expands the cultural horizons of audience and performers based on Gadamer's hermeneutics. The chapter on ethics focuses on the argument that Reminiscence Theatre puts ethics into practice and re-examines modem ethical relations through its devising and performing process. Both ancient Chinese philosophies' emphasis on the practical and aesthetic aspect of ethics and Levinas' philosophy of ethics and the concept of nomadic ethics will be applied to support my argument