This paper explores the social role of stand-up comedy in China as an alternative public sphere, where comedians are advertised as truth-tellers and give voice to marginalized perspectives. Drawing on Shakespeare's concept of the 'fool's license,' I argue that Chinese stand-up comedians navigate the delicate balance between just-joking and truth-telling, providing a space for oppositional consciousness and public vitality. Through ethnographic interviews, content analysis of recorded performances, and participant observation in Beijing's comedy clubs, the study examines how these comedians skillfully manage the tension between being 'funny' and 'political' in a restrictive sociopolitical environment. Building on discussions of affective labor and counterpublics, the paper contributes to the relationship between comedic performance and its sociopolitical context in China, a landscape shaped by the interplay of socialist rule and neoliberal reforms. The unique environment in China allows comedians to serve as a buffer between people and the government, using humor to both critique and de-escalate tensions. This work sheds light on the role of stand-up comedy in providing a space for diverse perspectives and subtle transgressions, thereby enriching the broader discourse on humor's role in social and political critique.