PopulationmovementandmigrationisoneofthekeyfactorsthatdeterminethetrendoffuturedemographicchangesinChina.MigrantpopulationinChinahasbeenrapidlyacceleratingsinceitsemergenceintheearly1980s,withever-changingstructuralanddistributionalcharacteristics.Itisoffundamentalimportanceforustofullyunderstandthesechangesandpredictitsfuturetrends