This article intents to explore the geography of sexuality of Taipei Park through a textual analysis of Hsien-yung Po's famous gay novel. The topics discussed include: (1)The spatial representations of Taipei Park as a meeting place of gays, (2)the relation between representations of erotic space and gay identity. (3)the Taipei Park as an "erotic heterotopia" in Foucault's sense that reflecting the homophobia and sexual anxiety of heterosexuality, (4)the conflicting and multiple meanings of Taipei Park in the historical-social trajectory of Taiwan, and (5) to enquire if spatial performance and erotic performance could connect to the construction of gay identity in the struggle for public space and homosexual movement.