Traditional communities in the interior of Seram Island still practice arboreal subsistence, living off forest resources while understanding environmental conservation. Several research studies explain that this arboreal way of life is likely a form of sustainability from a long-standing tradition. Arboreal subsistence is a naturally formed tradition that has been passed down through generations since the indigenous people of Seram Island lived simple lives, and it has persisted in several traditional settlements to this day. Based on archaeological studies and oral traditions of the indigenous people, it is known that the chronology of the community’s transition from simple dwellings to present-day settlements has been continuous. This research was conducted in Negeri Huaulu, a traditional village in the northern part of Seram Island. Negeri Huaulu is one of the supporting villages of Manusela National Park and serves as a tourist village, particularly as the climbing gate to Mount Binaiya. Data collection employed ethnographic methods through in-depth interviews and living with indigenous people. Data processing and analysis used an inductive qualitative method concerning literature sources. The results of this research show that the traditional settlement of Negeri Huaulu still maintains an intact arboreal subsistence that preserves its customs and cultural authenticity. Over time, the traditional people in Negeri Huaulu have lived a healthy life without resource scarcity, relying on forest and natural resources while maintaining ecosystem sustainability. In addition to physical well-being, this traditional community lives by the values of wisdom that uphold justice and social morality, thus supporting creativity and artistic expressions manifested in various traditional arts and architecture.