The little theater artists made their social debates on the theme of sexual plurality on stage during the nineties of Taiwan. In the nineties, in the space of little theater, their works reflected the living difficulties of sexual plurality group and criticized the unitary sexual codes oppression. My investigation began by asking what kinds of sexual plurality have been represented in the little theater, by what theatrical skills, and the possible reasons of theater artists putting on these performances. Through these works, artists helped to cultivate a group of audience who supported sexual plurality representations.