Considering the capability approach of Amartya Sen, in many instances, migration is an adaption strategy that is no longer freedom of choice; rather, people are forced to choose it. Specifically, people often choose migration for adaptation due to climate and environmental vulnerabilities. This Bibliometric analysis aims to provide a detailed overview of how migration is considered an adaptation strategy using the Scopus database. The search query includes 'migration,’ 'adaptation', 'vulnerability', and 'climate change' as the keywords. A total of 7,335 scientific documents, including books, book chapters, articles, and review papers for 2011-2021, were analyzed using VOSviewer software. The lexical network analysis suggests a strong connection between migration and adaptation. Moreover, the spatial network analysis suggests that the migration-related research works are primarily concentrated in the USA, the UK, and Australia. The findings of an intensive review of 38 Scopus index migration literature suggest that migration is the ultimate effect of climate change, and the researchers termed this an 'adaptation strategy'. Although numerous dimensions of migration and adaptation strategy have been explored in the literature, however, future research options are still available in the field of migration-adaptation comparing circular and permanent migration, gendered dimension from the left-behind perspective, cultural diaspora between the migrants and receiving country, policies on alternative adaptation strategies, adaptation due to freedom of choice and forced migration from the wellbeing perspective. Moreover, heightened research collaboration is strongly suggested among the top migrant-sending and receiving countries to get more insights and policy formulation.