This paper mainly uses the 'third space' theory to explore the impact of the collective action against air pollution organized by theater teams and Puli's local associations. First, I discuss the third space generated between the interdisciplinarity of social work and theater, colleges and communities, and between daily life and theater. Second, I analyze the impact on students and the community during the process of hybridization and negotiation of the third space. The research data was collected in three stages from the perspectives of students and community leaders, including students' reports, surveys and interview data. I found that the third space of interdisciplinarity between theater and social work helps students to develop new understanding and insights into community issues and to rearticulate college and local knowledge. However, it is necessary to pay attention to participants' emotions and power issues. The hybridity of the third space provides opportunities for local organizations and troupes to collaborate and act collectively.