The phenomenon of migration is as old as human beings. In the beginning, human beings were migrating in search of water and food, but now mostly for economic purposes. Pakistani market has not enough space to accommodate all its labour force because the market strength is very low compared to the country's population growth. Therefore, a significant number of skilled and unskilled labourers are migrating to foreign countries in search of jobs. This article aims to highlight the importance of migrants for economic development and know about the phenomenon of migration in Pakistan and its link with the economic development of the country. It answers, why people are migrating? Where are they migrating? And what are its impacts on the economy of Pakistan? The majority of Pakistani migrants settled in the Middle East. These migrants send a handsome amount as remittances every year to Pakistan. It is playing an important role in the economic development of Pakistan through different ways and means.