International labor migration is a multi-level, multi-dimensional social phenomenon being studied by specialists of different branches of science. Scientific views on the content of the concept, causes, and factors behind it, consequences from it, etc., have been developing together with the progress of this phenomenon and are still developing it now. The chapter is dedicated to the influence of the world economic trends (globalization, integration, transnationalization) on the international labor movement and changes of theoretical approaches to its analysis in the historical development of society on the examples of relevant contemporary concepts.