Lifecourse transitions from adulthood into older age are particularly complex for transnationalmigrants, bringing additional challenges and opportunities. Adding to the growing literature on ageing and migration, this article illustrates the ways ICTs facilitate the transnational lifecourse transitions of Vietnamese migrant grandparents in Australia through lifecourse digital learning. Research findings highlight the crucial role that digital citizenship plays in supporting migrant grandparents’ adaptation to increasingly mobile lives through practices of digital kinning and digital homing. These practices include using technological tools to maintain social support networks, exchange transnational caregiving, tackle language, navigation, and social integration barriers, and consume culturally relevant media, all of which support migrant identities and belongings. Findings confirm the importance of ICTs in promoting lifecourse digital learning for older migrants who are often stereotyped for their poor learning capacities and ability to adapt to new living arrangements because of their older age.