Exploring Students’ Challenges and Oportunities Toward The Use of Captioned Video in Vocabulary Learning.Luthfi Oktarijaya BastiMuhammadauthorVideo caption is the display of the spoken word in text, it can help student to understand and learn the English with subtitle caption, and it can expand their vocabulary. In this research, the researcher focuses on exploring the students’ challenges and opportunities towards the use of video caption in vocabulary learning. This research attempted to answer the following research question: “what are the challenges and the opportunities towards the use of video caption in vocabulary learning?”. The research was conducted in SMAN 8 Bogor and the participants are 34 first grade students. The researcher used qualitative research with a narrative inquiry method. The data were collected through questionnaire, reflective journal and interview. The result of this study shows that there are three challenges and three opportunities faced by students in using captioned video in vocabulary learning. The challenges are seeing some of the vocabulary they have recently encountered; most of them feel that their attention is being divided because they have to look between the video and the subtitles; and they frequently open the dictionary when they come across vocabulary that they find difficult to understand. The opportunities are using captioned videos to learn vocabulary can enrich their vocabulary, and they feel motivated when they come across new vocabulary while watching the videos. Therefore, in conclusion, students face challenges and opportunities in using captioned video in vocabulary learning. Keywords: Challenges, Opportunities, Captioned Video, VocabularyPENDIDIKAN BAHASA INGGRIS2024Universitas Pakuan;Pendidikan Bahasa InggrisThesis