The Guest Lecture activity with the theme “Learning Indonesian for Foreign Speakers: Case Study in Japan” was attended by students of the Language Education Study Program (Master and Doctoral) Postgraduate Program, Undiksha. This activity invited speakers from Japan, namely Prof. Dr. Litt. Mikihiro Moriyama, B.A., M.A. The activity was carried out via Zoom Meeting on May 22, 2023. He said that learning Indonesian in Japan is still in great demand by the local community. They are very interested in learning Indonesian. However, for them, the most difficult learning material is word formation and syntax. Therefore, teachers always try to improve teaching strategies so that material that is considered difficult can be handled well.