Hosted by International Society for Gerontechnology (ISG), the World Conference of Gerontechnology has been the world's largest gathering of scholars, researchers, experts and practitioners in the field of Gerontechnology, providing a variety of interaction modalities: keynote speeches, symposia, chaired oral sessions, leading edge technologies, and GeronTechno platforms. The 9th World Conference of Gerontechnology (ISG 2014) has been held in Taiwan by the ISG Sinophone Chapter, under the theme "Cultural and Social Diversity in Gerontechnology." With the full support of the Chinese Society of Gerontechnology and Service Management, Yuan Ze University and Taiwan External Trade Development Council, we are confident that the conference will be a successful global academic festivity of exchanging relevant research findings from all over the world.