Background and objective: Most cities in South Korea have mountainous forests as hinterland green space in their centers, which are used as urban parks. This study was conducted to analyze citizens' perceptions of a mountainous forest restoration project being carried out in Jinju City.Methods: The research site is part of Bibongsan Mountain in Jinju City. Visitors' perceptions of the Bibongsan Restoration Project (BRP), carried out since 2015, were surveyed and analyzed regarding nature, history, and changes. The survey was conducted from August to October 2019, and the collected data were statistically analyzed.Results: The main socio-demographic changes were an increase in the proportion of men among visitors, aging, and an increase of unemployed people in the occupational distribution. The overall assessment of BRP implementation was positive. Visitor perceptions of the value, revival, and restoration of historical resources were more vital than in 2015 and had a strong positive correlation with each other. Visitors identified a high need for safety facilities for elderly visitors, improved wireless communication services, facilities for various recreational activities, outdoor learning facilities and programs for nature study, expanded parking lots, and improved transportation services.Conclusion: The urban mountainous forest restoration project is overall satisfactory and needs to be continued. The results showed that urban mountainous forests are not only recognized as spaces for walking and exercise for health but also recently as historical spaces expressing the unique or featured identity of the city, educational spaces for interest and understanding of nature, and recreational spaces that reflect local lifestyle changes. Thus, urban forests need to be restored in the context of local historical and cultural resources as well as natural resources. In addition, there is a need to be aware of various changes in the population, including aging and an increase in retirees.