One of the most popular social media in this modern era is Youtube. YouTube is also playing a role in education. The teacher as the most important source in the delivery of learning materials must have a thousand minds to achieve a qualified teaching quality. The teachers’ ability to master technology seems to be getting a new challenge when students and teachers are no longer able to meet face to face since the Covid-19 pandemic. This study aims to explain how teacher utilizes youtube video to enrich vocabulary for EFL young learners and to describe students' responses to the use of youtube video. This study applied a qualitative method. Data was collected through observation, interview, and documentation. The research participants of this study were English teacher and 4th grade students at SD Islam Terpadu 04 Sultan Agung Kriyan. The results of the study showed that both teacher and students have a positive attitude towards the use of YouTube. All of the students have many benefits to improve their English skills, especially to enrich their vocabulary. Youtube is very easy to access in almost every student's gadget and it can be used in every situation to help and motivated them to learn English. Both teacher and students are only feeling the difficulty if the internet connection is not good. By understanding the implementation of youtube videos and the students’ responses, this research offers that the use of youtube is recommended as an integral instructive tool in English language classes.