Day care service is an important component of the community care service system for elderly people with dementia. However, the concept of dementia day care has not been unified, and its connotation and implementation framework have not been clarified, which greatly affects the continuous construction and high-quality service supply of dementia day care service. The Walker classic concept analysis method was used and five attributes of the concept was introduced including (1) daytime intensive, non-residential care; (2) professional coordination and integrated care focused on families with dementia; (3) public respite care support for families with dementia; (4) a crucial complement to high-quality care for dementia; (5) a driving force in promoting a dementia-friendly community. The preconditions of dementia day care include high care needs, weakened family functions and the dominant role of public care, and the consequences involve dementia, family caregivers and social welfare. The implementation factors identification, implementation strategy design, implementation and effect evaluation were carried out respectively using the consolidated framework for implementation research, the replicating effective programs implementation framework and the RE-AIM evaluation framework in the field of implementation science. The specialization, high quality, integrated care, and the philosophy of the friendly community should be highlighted in the future development of dementia day care. The service content, facilities and implementation process need to be improved to promote the quality of dementia day care service.

认知症日间照料是社区认知症老年人照护服务体系的重要组成部分，但其概念尚未统一，内涵与实施框架尚未阐明，较大程度地影响着认知症日间照料持续建设和高质量服务供给。本文采用Walker经典概念分析法，对认知症日间照料进行概念分析，得出认知症日间照料主要具有5个概念属性：（1）日间时段集中、非入住式的照料；（2）专业协同、以认知症家庭为中心的整合照料；（3）认知症家庭享有喘息服务的公共照护；（4）认知症高质量照护的重要补充；（5）认知症友好社区建设的有效促进力量。认知症日间照料的前提包括认知症患者高照护需求、家庭功能弱化及公共照护的主导性作用，其结局涉及认知症患者、家庭照顾者以及社会福利等。本文还运用实施科学领域中的实施研究综合框架、再造有效项目实施框架及RE-AIM评价框架，分别进行了认知症日间照料实施因素识别、实施策略设计、实施与效果评价。今后认知症日间照料建设需凸显专业化、高质量、整合式照料以及友好社区理念，其服务内容、设施及实施过程有待进一步完善，从而提升认知症照护品质。