Although immersive VR has become a trend, few studies investigate how teachers learn how to incorporate immersive VR into lesson planning. This study investigates how pre-service teachers learned to implement immersive VR- Immerse program into their EFL speaking lesson planning. A total of fifty from a northern university in Taiwan participated in this four-week learning workshop. Participants first learned how to use the VR headsets to do basic moves, and then they were grouped into six teams and prepared an English lesson plan by incorporating the Immerse VR app. They also video-taped two short clips, one of teachers’ account and the other one is the demonstration video from students’ using Immerse VR app. In the third week, they were required to show their lesson plan, demonstration videos and completed a survey, followed by the focus group interview in the fourth week. Both quantitative and qualitative data were collected and analyzed, including pre-service teachers’ surveys, demonstration videos, lesson plans and classroom observation data. The results show that pre-service teachers generally liked the use of immersive VR in planning English speaking lessons, although some difficulties, such as being unable to add new items and feeling nausea happened.