The concept of digital twin has captured significant attention in recent years and its potential application within the domain of home care has been explored in several studies. This review endeavors to provide a comprehensive overview of digital twin technology and its applications in the realm of home care, delineating the key attributes and challenges entailed in their implementation. A systematic search was conducted across five databases, namely ACM digital library, IEEE Xplore, PubMed, Scopus, and Web of Science. Findings from forty-five included articles were categorized employing a systematic approach, highlighting the technology’s deployment in remote older adults’ care monitoring, health issue prediction and personalized treatment planning. Furthermore, this review identified challenges of integrating digital twins into the home care sector. Despite recognition of its potential, there is a distinct lack in the literature of in-depth studies specifically exploring the implementation of digital twin technology in home care, highlighting the need for further research.