The article the main scientific approaches to determining the financial potential and factors of its formation; the definition of migration capital, the author analyses modern tendencies of movement. It is proved that the remittances of labour migrants have a significant impact on the formation of financial capacity as the host country and exporting countries of labor force. Listed on potential socio-economic threats, which may be due to excessive attraction of migration capital into donor countries of labor migration and its outflow from the donor countries, the migration of capital; the necessity of state regulation of migration processes