Selectivity of human migration has long been the focus of demographers and economists.This paper goes into detail on the migration selectivity of Chinese migration in the transitional era of late 1990s,using the 2000 Chinese population census micro data.It reveals that the young adults and the more educated dominate the migrations stream with a more balanced sex ratio for the 15~29 age group,whereas more females in their early twenties are on the move than males.Meanwhile,the household registration system is the major determinants for migration decision and type of migration.