本研究嘗試對兼具社會運動與文化行動實踐經驗的樂團「黑手那卡西」進行深入的考察。透過對黑手那卡西參與社會運動,以及與運動組織和弱勢者共同開展文化行動的歷程進行整理,凸顯他們有別於主流文化想像的基進意涵。藉此發現黑手那卡西如何將基進民主的理念融入日常生活的行動之中,並同時與弱勢者共同對主流論述造成的壓迫進行文化抵抗。經由上述的分析,研究者試圖去發現文化發聲與群體文化的建構對弱勢者具有的培力意義。同時,從黑手那卡西將基進民主理念運用於和弱勢者共構文化抵抗的實踐經驗裡,勾勒出一個有別於以理性論述為基礎的公共領域另類想像。 This study attempts to explore the practical experience of "Black Hand Nakasi", the band which is play important part in social movement and cultural practice in Taiwan's music industry. Through participate the social movement and their own organization of Black Hand Nakasi, we found out how they precisely increase the idea of radical democracy into their daily life. At the mean time, stand the same side to resist the cultural hegemony of Taiwan society.We argue that the meaning of empowerment of cultural action of Black Hand Nakasi which is create another theoretical foundation of Public Sphere ideology.