Human Migration" refers to the movement of people from one location to another with the intention of settling temporarily or permanently in the new location for a variety of reasons. The Indian Constitution guarantees the freedom of movement to all citizens. The fundamental principles of free migration are enshrined in Article 19(1) clauses (d) and (e) of the Constitution, which guarantee all citizens the right to move freely throughout India's territory, as well as reside and settle in any part of India's territory. Nearly 31.5 million interstate migrant workers are estimated to be an important part of Kerala's economy and labour force. The state also provides the highest wages in the country for migrant workers working in the unorganized sector. This study examines the interstate labour migration to Kerala and welfare measures taken by the government of Kerala to promote the social security, health and living standards of these workers