BACKGROUND AND OBJECTIVES: Marine protected areas are critical tools for conserving biodiversity and sustaining ecosystem services. Nonetheless, their efficacy depends on the equilibrium between environmental conservation and the socio-economic advantages for coastal populations. The Savu Sea National Marine Park in Indonesia, the country’s largest marine protected area, encompasses vital ecosystems, while supporting local communities reliant on marine resources. The study objectives were to utilize the ocean health index plus framework to evaluate the health of Savu Sea National Marine Park, determine conservation priorities, and emphasize the potential for ocean health index plus to emphasize Indonesia’s Marine Protected Area network within the coral triangle. METHODS: A customized ocean health index framework was applied under two scenarios. Scenario ۱ ten global ocean health index objectives utilizing a preservation-oriented weighting scheme that prioritizes preservation and emphasizes conservation outcomes. Scenario ۲ concentrated on five primary ecological objectives that are most pertinent to the effectiveness of Marine Protected Areas. The indicators were obtained from satellite data, government reports, and expert judgment. The status scores were calculated relative to reference points, with future status determined by trend, pressure, and resilience componentsFINDINGS: The ocean health index plus score for Savu Sea National Marine Park was ۶۹ under Scenario ۱ and ۸۷ under Scenario ۲, indicating moderate to high ecological health. Ecological goals such as carbon storage (۹۹), clean waters (۹۶), and biodiversity (۸۲) performed well, reflecting intact habitats and water quality. However, socio-economic goals such as artisanal fishing opportunity (۳۰), natural products (۲۴), and coastal livelihoods (۳۳) showed weak performance. These circumstances underscore considerable socio-economic difficulties and reveal fundamental problems including restricted livelihood diversification, inadequate market access, and a declining fisheries value chain. The low scores for food provision (۶۵) and livelihoods (۳۴) suggest a direct link between the socio-economic deficits and the inability to harness the full potential of the marine resources. CONCLUSION: Savu Sea National Marine Park demonstrates strong ecological integrity but limited socio-economic benefits. Long-term management effectiveness requires integrating livelihood development, the enhancement of fisheries value chains, and the promotion of sustainable tourism in conjunction with conservation initiatives, ensuring that ecological achievements yield significant socio-economic advantages for the local communities.