The decision-making process of China’s national forest park (NFP) system typically excludes the consideration of the public’s perceived benefits. In this regard, the objective of this study was to elucidate the type of cultural ecosystem benefits (CEB) that NFP can provide and to inform the evidence-based design of forest parks by establishing its linkage to the public’s perceived sensory dimensions (PSD). A CEB evaluation scale was developed for forest parks, and a 6-day public participation GIS (PPGIS) survey was conducted in Fuzhou NFP to collect evaluations of CEB and PSD at different sites from 853 respondents. The findings revealed that the CEB furnished by NFP is comprised of three dimensions. The three dimensions of cultural ecosystem benefits (CEB) are identities, experiences, and capabilities. The impact of different PSDs on CEBs varies, as do the impacts of high and low scores on CEBs for the same PSD. It can be concluded that the creation of more serene and open spaces will result in an increase in the CEB available to the public. Furthermore, designers may wish to consider enhancing single dimensions of PSDs in order to characterize different areas, which may prove to be a more effective approach than enhancing PSDs across the board. In summary, our PPGIS survey is expected to enable community-based governance of the NFP and provide a basis for a comprehensive sustainability dialogue between people and forests.