隨著漢語學習在全球範圍內逐漸升溫，國際漢語教師的培養成為了焦點。迫於全球疫情的蔓延，教師教育開始普遍採用線上教學的模式，然而關於國際漢語教師的線上教學研究十分缺乏。本研究以國際漢語教學專業研究生為物件，實施了關於任務型教學法的線上教學。研究收集了學生在Moodle 論壇上的反思和討論，運用文本挖掘（text-mining）技術提取出有意義的、具有代表性的資訊，展示了學生對任務型教學法的認知發展過程。基於研究結果，本文建議針對國際漢語教師的線上教學需要充分發揮資訊技術的能供性，為啟動教師先備知識、促進教師反思、合作討論以及知識建構創造條件。Since the widespread of learning Chinese in the global context, increasing attention has been paid to teacher education of Chinese as an international language (CIL). Due to the Covid-19 pandemic, online teaching mode has been widely employed in teacher education. However, a dearth of research has investigated the training of CIL teachers via online teaching mode. The study conducted online teacher training about task-based language teaching (TBLT) to master’s students of teaching CIL. The study applied the text mining technique to analyze the reflections and collaborative discussion that were generated by the students on the Moodle and extracted the meaningful and representative themes from the students’ written texts to demonstrate development in their understanding of TBLT. Based on the results, the study suggests that online teacher education should use technology to provide teachers with opportunities for reflecton, collaborative discussion and knowledge construction. Copyright © 2021 香港教育大學中國語言學系、哥倫比亞大學中文部、中華書局（香港）有限公司.