This study investigates how an English teacher at SMP-IT Al-Fityan Aceh implement YouTube videos as online media for teaching English pronunciation. Three research questions were formulated. As such, the purpose of this study was to know whether the YouTube videos can be a reliable source or material in learning English pronunciation, to understand how does the implementation of YouTube videos in teaching English pronunciation, and to know the advantages and problems Faced during the implementation of YouTube Videos for Teaching Pronunciation based on teachers' perception. This study applied a qualitative research design through observation and interview sessions with the selected teacher at SMP-IT Al-Fityan School Aceh. Finally, the result of this study shows that the sources used by the teacher on YouTube are engVid channels. the students are more enthusiastic in learning pronunciation by using selected YouTube videos. The teacher develops several phases in using the engVid channel for designing English pronunciation activity, which are the preparation phase, the implementation phase, the repetition phase, and the conclusion phase. Furthermore, the advantages of using YouTube media are can be access largely, authentic examples of pronunciation, and to attract student’s attention. The challenges facing the teacher nowadays is social distancing during the COVID 19 pandemic, where the teacher is unable to meet the students directly, and in some way, the teachers will be overwhelmed and unsupported to do their jobs well.