This chapter explores the intricate relationship between language and identity within migrant communities, thus highlighting different language attitudes and politics of identities of the mainland Chinese (MC) community. Importantly, language-use patterns tend to shape and be shaped by identity within various sociopolitical and sociocultural settings. While the balance of power among different languages may shift following migration, educational priorities for younger generations and the ongoing contact between host and immigrant populations can disrupt existing patterns of language use. Factors such as language-related attitudes, identity awareness, loyalty to the home language, local networking, and religion can influence the extent and selection of choice and translingual practice, which are the common outcomes of language contact in bilingual speakers’ linguistic socialisation. These insights are particularly relevant in terms of examining how migrant communities adapt, integrate, or remain unchanged from a linguistic perspective, thus reflecting broader politics of language and identity.