The identity legality of labor unions has been disputed in practice.The organizational structure and the working mechanism of three types of labor union that serve migrant workers are analyzed based on field investigation.In form,all the three types of labor union are l...MORE The identity legality of labor unions has been disputed in practice.The organizational structure and the working mechanism of three types of labor union that serve migrant workers are analyzed based on field investigation.In form,all the three types of labor union are leg...