Urban parks, as one of the typical outdoor public spaces, often pose significant challenges for designers due to the diversity of their users, the complexity of the spatial environment, and the heterogeneity of temporal changes. The work aims to continuously explore the spatial behavioral patterns of park users and propose theoretical foundations with practical value for designers based on their behavioral characteristics. The user behavior in urban park spaces was studied with the time-based behavioral mapping approach from the perspective of organic order. As a result of a six-month field investigation (with a total of 2 538 participants) conducted in 14 parks across different administrative districts in Shanghai, various "misalignments" were identified between user behavior and facility design. It was suggested that the design of public park facilities should, on the basis of the existing pursuit of localized humanization, optimize the design of spatial and public facilities across different time periods, respecting the organic order of users' spatial logic and activity time sequence. Additionally, through inductive analysis, an organic order model for urban parks at macro, meso, and micro levels was constructed, providing an analytical framework for the temporal segmentation structure of organic order in spatial behavior. In conclusion, the organic order design of public facilities in parks can effectively meet the needs of different users at different time, encourage the generation of small group activities within the space, and achieve an ideal state of organic order in spatial activities. Organic order design focuses on the continuous generation of "user-centric" design experiences over time, representing an enhancement of the original concept of "user-centric" design.