Objective: The purpose is to clarify the concept of advanced care planning for older adults with dementia in Japan by concept analysis.Method: Forty-two documents were analyzed using the method of concept analysis by Rodgers.Result: The 6 attributes are "Person, multi-professional, all related parties form a team to build a relationship " , " Selection of proxy decision makers " , " Share ethically appropriate advance directives", "Final of life family preparation for the stage", "Person-centered decision-making that continued from early to final", "Efforts to think about the best way of life desired". In addition, 4 prerequisites and 3 consequences were extracted. Conclusion:This concept is defined as follows: "With changes, progression, and anxiety of dementia, we will prepare an environment for future decision-making, and from the early stage of dementia, while building relationships between the person and all concerned, sharing advance directives, proxy decision-makers selection, family preparation for the final stages of life, a process of personal-centered decision-making that continues to the end and efforts to think about the best way of life."