本研究透過對成露茜、Carpentier、Fontes與Downing等學者所提出的觀念，歸納出另類媒體的定義，此定義運用的核心概念包括近用媒介、主動閱聽人、市民參與、多元表達方式、意識覺醒、對抗主流媒體、反抗文化、反壓迫、弱勢團體主體性、市民社會與民主化等。本研究透過訪談資料與媒體內容之比較論述，呈現蘭嶼原住民在反核廢料與反對國家公園設置事件上的聲音與觀點。其次，本研究也分析蘭嶼的反對運動領袖如何運用主流媒體與另類媒體，透過結盟，進行媒體策略之擬定，以散播運動目標、創造有利於蘭嶼原住民的報導。最後，本研究將另類媒體的概念區分成另類媒體的使用者、另類媒體的運用方法、以及另類媒體的目的等三個層面，試圖勾勒出另類媒體的理論意涵。

This study proposes an integrated definition of alternative media involving the use of media access, active audience, citizen participation, multiple channels, consciousness raising, counter mainstream media, oppositional culture, subjectivity of minority groups, civil society, and democratization. For the literature review, we used Cheng (2004), Carpentier et al (2003), Fontes (2010), and Downing (2001). Our research method included data from interviews and media content. Our study includes anti-nuclear and anti national park voices and perspectives that deals with the intentions and strategies of the leaders of these movements to create media campaigns, ally with outside supporters, and producing promotional content via mass media reporting. The purpose of this study is to elucidate the theoretical implications of alternative media by analyzing the methods of users and their purposes for utilizing alternative media.