Landslides in Indonesia frequently cause severe damage to public infrastructure, agricultural land, and human casualties. This study examines the dynamics and causes of landslides and proposes effective mitigation strategies, focusing on a rotational landslide that occurred on February 17, 2023, along the Trans Timor National Road KM 73 in Noelmina Village, Kupang Regency, East Nusa Tenggara. Using geomorphological analysis, hydrological evaluation, and land use studies, the research identifies key triggers, including the instability of Bobonaro clay soil, increased soil saturation, and excessive water load from land use changes. The findings highlight the need for better hydrological management, strategic land use planning, and community capacity-building in disaster mitigation. Proposed solutions include developing landslide-resistant infrastructure, planting vegetation for slope stabilization, and educating communities on sustainable land use. This research significantly contributes to Indonesia’s disaster mitigation efforts by emphasizing a comprehensive approach to landslide prevention and adaptation.