Abstract: | With comparison of demographic changes between the developed European countries and China,this paper has discussed the shortcomings of the Western demographic transition theories.Furthermore,the paper has proposed the direction of demographic transition and the criteria of such transition’s completion.With the establishment of age-structure transition theory,and helped with strict definitions of both surplus population and appropriate population,the paper points out the distinction of demographic age-structure between those developing countries that are undergoing demographic transition and those developed countries with a near completion of such demographic transition.Finally it concludes that China’s transition of age structure is moving towards a feasible direction. |