本研究試圖從青少年的視角，透過詮釋現象學方法論觀點來認識三位青少年夜晚家外的活動經驗、活動歷程的轉變、對活動經驗所賦予的意義，以及在夜晚家外活動中，所覺察到的自身角色定位與自我的意義。藉由深度訪談的方式蒐集分析文本，資料分析方法上則使用主題分析法呈現三位青少年夜晚家外活動與自我形塑的歷程。 三位青少年夜晚家外自我形塑的歷程故事，呈現了「青少年」不是只有單一的樣貌。隨著每一位青少年不同的個人特質與喜好，再加上生活情境脈絡的差異，在與不同的人事物互動當中，形塑了每一個人不同的經歷與角色形象，展現了不同的「自我」。「自我」的意義存在於每一個人的行動當中，是個人與環境互動過程而產生的，因此青少年夜晚的家外行動，一部份展現其生活環境的區域特性，另一方面，也展現了個人的主體性，在看似相同的活動當中，卻有一些不同的行動，以及行動背後所隱藏著不同的意義脈絡。所以如同我和三位青少年，四個人，就有四種夜晚的故事，而一千零一個青少年，就會有一千零一夜的故事。 最後根據本研究之結果，研究者於文末針對家庭、學校、青少年相關政策、青少年外展工作提出了相關建議與省思。 / Using hermeneutic phenomenology, this study examined evening activities of three adolescents in the community. I conducted in-depth interviews, asking the participants to describe their evening activities, the meaning of these activities, and the role of self in these activities. I analyzed the transcripts using thematic analysis and presented their course of self-development involving in these varying evening activities in the community. The evening stories of these three participants showed that three were no stereotypical images of youth. Every youths had their own personal traits and preferences. And, their individual life situations and people interaction shaped who they have become and how they see themselves. Therefore, the meaning of self exists in every human action with other individuals and in the environment. So, the types of evening activities youths participated in showed the characteristics of the environment they lived in and showed their individual unique characteristics. Even though there were some activities seemingly identical, there were hidden meanings behind them. These study showed that ever youth has their own unique story. Like me and the participants, we together had four evening stories to tell. So if there were one thousand and one youths, there would be one thousand and one stories to tell. At the end, suggestions and implications were discussed about family, school, and youth-related policies and youth outreach work.