On “9.21” World Alzheimer’s Day, we held a World Alzheimer’s Day theme activity to care for the elderly and pay attention to memory – “Prevention of dementia, starting from knowing”. The event promoted the knowledge of Alzheimer’s disease to the whole society, emphasized early detection, early diagnosis and early treatment, and called on the society to give more understanding and support to Alzheimer’s patients and their families. With the theme of “Love continues, when memories fade away ……”, family members of dementia patients were invited to share their care experience and their photo stories.