As sustainable development has become a new paradigm around the world, interest in sustainable tourism is also increasing in the tourism sector. Despite the visualization of sustainable tourism development projects, there is criticism that there is a lack of sustainable tourism development cases that are distinctly differentiated from existing tourism development and are not linked to environmental damage or regional revitalization. Major sustainability in sustainable tourism can be seen as ‘environmental sustainability, socio-cultural sustainability, and economic sustainability’. The author talks about the fact that elements do not exist individually but are interconnected to interact and influence, and introduces the ‘normative theory’ as a supporting theory. Based on the normative theory, the author proposes four things in this article: Environmental Improvement Measures for Ecotourism Destinations, Environmental Management Mileage System for Local Residents, Environmental Management Responsibility System for Tourism Businesses and Promoting International Standards through Environmental Education. In achieving sustainable tourism development, it is imperative to not only refine development methodologies but also establish robust implementation systems. Stakeholders must operate within the ecological limits prescribed by environmental capacity, ensuring a harmonious balance between tourism growth and environmental preservation.