Protected areas have been designated worldwide as a methods to conserve biodiversity. However, due to insufficient management, it is often difficult to accurately assess the effectiveness of protected areas. Various indicators are used to evaluate the effectiveness of protected areas, among which land cover change analysis provides cost-effective and long-term insights with relatively few spatial limitations, making it applicable to a wide range of sites. This study aims to evaluate the effectiveness of Wildlife Protected Areas(WPAs) by analyzing land cover changes. Specifically, analyzing the proportion of previously natural areas that have been converted into agricultural land or urban areas, considering factors such as whether the location is inside or outside the protected area, overlapping designations with other protected areas, and the designation period. The results reveal three key findings: First, while protective effects were observed within WPAs, but significant development pressure was identified in surrounding areas. Second, WPAs overlapping with other protected areas tended to be more effective. Third, the longer a WPAs has been designated, the less land cover change occurs over time, demonstrating a sustained protective effect. This study is meaningful in that it quantitatively evaluates the effectiveness of WPAs using land cover analysis, which is both economical and capable of capturing long-term environmental changes. As land cover continues to change, the use of advanced technologies such as drones for real-time monitoring could enable faster and more precise assessments of both protective effectiveness and external pressures.