This chapter explores the complexity of migrant communities in Japan through the lens of dig- ital media. It aims to illustrate how migrants’ everyday diasporic experiences and their digital media usage are manifested in the Japanese context, so as to explore the intersection of digital connectivity and human mobility. The first section dissects the concept of “migrants in Japan”,  followed by an introduction to transnationalism as a theoretical toolkit for digital migration studies. This chapter is then concluded by a case study focusing on digital media appropriation among Chinese migrants in Japan, demonstrating migrants’ indigenized application of digital media and transnational social engagement.