The population regulation of Beijing is a systematic project. This paper analyzed the reason,content,object,scope,direction,target,thought and means of the population regulation in Beijing. It argued that,in the course of population regulation, overall population should be the object, and population distribution should be the main content as well as the balance of population scale and structure. It's necessary to be based on Beijing,coordinate the Beijing,Tianjin and Hebei,and look around China. And a dynamic target should be developed and economic means should be introduced with the administrative means to mitigate non core capital functions,so that population can enter and exit of Beijing rationally.