The world is dramatically ageing, increasing the need to pay attention to language use in social interaction involving older people. Such issues also crop up in Taiwan. This paper summarizes the history of previous studies in linguistic disciplines focusing on three Taiwan-based linguistic projects illustrating how to communicate with older people in three scenarios, namely, young-old first encounter talks, teacher-student communication in senior education contexts, and long-term home-care contexts. The implications of the identified communication accommodation strategies, underlying rationale, and uncovered conversational mechanisms are discussed in the conclusion.