Abstract:As an important ecological infrastructure in city, mountain parks are becoming outdoor living spaces for residents’ fitness, recreation and social connections. This paper takes Nanshan Park in Ningguo City as an example, from the perspective of park users, studies on spatiotemporal activities and spatial preference of users through dynamic observation of their behavior preferences of different age groups. The results show that there are significant differences in user behavior preferences of different age groups, and there is a regular relationship between user behavior preferences and usage periods and spatial characteristics. Based on the results, spatial characteristics that meet the needs of users are explored, and suggestions are put forward including ensuring the sense of spatial boundary between different functional areas, appropriately adding fun facilities and barrier-free facilities, and further developing the functions of publicity media and science popularization and education in the park.