本研究旨在了解職前華語文教師學習外語的歷程、語言學習信念與教學信念，屬質性個案研究。對象為華語文教學研究所四位台籍研究生，聚焦於外語學習歷程、外語學習信念、外語教學信念三大主軸，以深度訪談作為資料收集方法。訪談內容及範圍主要參考了Horwitz（1985）語言學習信念研究的BALLI 模式以及Johnson（1992）與張碧玲（2000）設計的語言教師教學信念問卷。研究發現包括：（一）不同時期的外語學習經歷對個案職前教師的學習及教學信念起了「學徒式的觀察」、信念的轉變及「濾鏡」等作用。（二）透過對個案的學習及教學信念探討，可以看到信念具有多層次的特質。而其中較整體面向的信念與較個別層次的信念，呈現了相互支持、矛盾等關係。（三）教學信念隨著背後所隱藏的動機不同，不能以因果關係作解釋。（四）個案教師基於不同的學習經歷、學習信念及教學信念，在教學上建構了與社會文化情境相關，同時也具有個人意義的教學理論。最後建議華語文師資教育應提供機會讓職前教師了解自我語言學習及教學信念，以及更多教學實務的機會，以讓他們在教學行動中反思，也在反思中進行教學。華語文教師本身亦可以利用自我的外語學習經驗作為反思的工具，時時保持成長的動機與內省的能力。此外，華語文教師也應對教學現場及環境文化等因素有所知覺，這樣才能促進有效的教學。 / This qualitative case study aims to understand the TCSL ( Teaching Chinese as a Second language ) pre-service teachers’ foreign language learning experience, language learning beliefs, and teaching beliefs. The participants are four Taiwanese postgraduate students from the department of TCSL in a university in northern Taiwan. The study focus on three aspects: foreign language learning experience, language learning beliefs, and teaching beliefs. In-depth interviews are conducted as the data collection method, informed by Horwitz’s (1985) BALLI model as well as Johnson (1992) and Zhang (2000). The findings include that (1) the four pre-service TCSL teachers’ foreign language learning experiences, serving as a filter, afford “apprenticeship of observation” which leads to changes in beliefs, and (2)beliefs are multilayered, involving both supportive and contradictory relationships. (3) Teaching beliefs are not necessarily consistent with each other because of different intentions lying behind. It is difficult to regard them as having a simple cause-and-effect relation. (4) Based on different learning experiences, learning and teaching beliefs, the four pre-service teachers construct their own personal theories toward teaching, which are not only socially relevant but also personally meaningful. Finally, the study suggests that language teacher education needs to provide sufficient opportunities for pre-service teachers to understand their own learning and teaching beliefs. It is also necessary to provide opportunities to engage them in authentic teaching contexts so that they could reflect on their teaching beliefs in real-world pratice. TCSL teachers need to be encouraged to use their own learning experiences as a reflective tool to sustain their passions for teaching.