The project aimed to document and describe the Mawes language, a highly endangered and undocumented language spoken by 863 people in two villages in Sarmi Regency, Papua Province. The research sought to preserve linguistic diversity and build local capacity while fostering collaboration between Udayana University and international institution (Palacky University, Olomouc, Czech). Using linguistic fieldwork methods, the project focused on collecting a 600-word wordlist, sociolinguistic surveys, and grammatical structures through video and audio recordings. The data were transcribed, analyzed, and uploaded to digital repositories to ensure accessibility and adherence to ethical standards. The project provided invaluable data on Mawes, addressing the urgent need to document endangered languages in Papua. It also strengthened academic collaboration and empowered local communities, ensuring the sustainability of linguistic preservation efforts. The fieldwork team are led by George Saad and assisted by  I Komang Sumaryana Putra, Putu Wahyu Widiatmika, Ida Bagus Made Ari Segara and I Wayan Gita Ayu Kusuma.