The application of technology in the field of elderly care has always been a focal point for researchers. This article reviews and summarizes research methods developed for the elderly population based on the natural aging process at the physiological and cognitive levels, and identifies key elements of technology design that prioritize humanistic care. The study focuses on three scenarios where intelligent technology supports elderly people with taking photos, exercising, and receiving care at home, and explores the development direction that designers should pay attention to. In terms of interaction design, it is important to fully consider the sensory state of the elderly and adopt a simple and user-friendly interface with multimodal interaction. From a humanistic care perspective, attention should be paid to the elderly's acceptance of technology and their emotional experience while using it, which helps them to better integrate into the digital age.

older adults  /  smart product  /  experience design  /  old-age support with technology