Abstract
This study aims to clarify the role of landscape ordinances and plans formulated by local governments in regulating large-scale solar power development around Aso-Kuju National Park. Through document and interview-based research, it identifies weaknesses such as insufficient regulatory force, inconsistent notification thresholds, and limitations of designated landscape areas. However, certain effects in curbing development were observed through adjusted notification standards and inter-municipal cooperation. The findings highlight the need for clearer integration between the Natural Parks Act and local regulatory systems to address institutional gaps in managing areas adjacent to national parks.