From the perspective of active aging, during the establishment of composite elderly daycare centers relying on community elderly daycare service centers, it is essential to fully meet the comprehensive and diverse service needs of the elderly. Therefore, based on the service design concept, the work aims to propose a method for exploring the pain points of user needs in community-based composite elderly daycare centers.By formulating relevant research on user needs, organizing and analyzing information of relevant stakeholders, and conducting a service scenario analysis of users, six main types of spaces that a composite community elderly daycare center should possess were obtained. The specific needs of users for the spaces of the elderly daycare center were captured through field investigation and multiple linear regression analysis respectively. The pain points of user needs suitable for current community-based composite elderly daycare centers were refined and determined. In conclusion, the method of need-exploration and refinement proposed in this work fully validates the significant role and value of the service design concept in the construction of community-based composite elderly daycare centers. It provides reliable theoretical supports for the innovative design of the well-being of community-based composite elderly daycare centers guided by the service design concept in the later stage.