This research, entitled "Language and Migration," constitutes an attempt to examine and understand the complex and interconnected relationship between language and migration. It explores the significance of language in the migrant experience, as well as the importance of second language acquisition within migrant communities for accessing services, given that knowledge of a second language facilitates the establishment of relationships with the populations of their destinationareas. This work presents a new linguistic subfield termed "Migration Linguistics," which represents a branch of applied linguistics and is considered a recent and emerging area of linguistic study. Borlongan first introduced the term "migration linguistics" in a 2019 article, marking the earliest documented usage of this terminology. Language serves as a comprehensive social tool for migrants, forming the foundation of migrant language policy through the utilization of languages employed by migrant communities. The language spoken in a particular country represents one of the characteristics that must be considered in the migration process. The native language of migrants constitutes their national identity and forms an essential component of their cultural identity, serving as a factor in preserving migrants' national unity. The migrants' native language is regarded as a foundation for learning additional languages. Language testing represents one of the policies implemented by legislative authorities, based on the proficiency level that migrants must achieve in the target language. Consequently, language has been utilized as a tool for migrant selection for several decades. Due to the role of language in the migration process and its effects in today's world, systematic research on language within the framework of the migration process is necessary.