The article is on the Palestinian labour migration from the West Bank into Israel. The first part gives an overview of the economic and socio-political conditions of the Palestinians in the West Bank under Jordanian rule and its rapid change through the Israeli occupation. The second part concentrates on details of labour migration such as causes, organization, scale of it, and social origin, education, age, forms of employment, payment, health, safety, living conditions, unions of the migrant workers, the importance of Palestinian workforce in the Israeli economy, and the effects of the labour migration on the Palestinian society.