Domestic research on population regulation and control policies in megacities has been for many years, but lacking of the quantitative analysis of policy. Taking Beijing as an example，this paper constructs the concept and index framework of population regulation policy in megacities through collecting and selecting a series of policy documents related to Beijing’s population regulation since the mid－1980s，the paper analyzes the evolution law of Beijing’s population regulation policies and its means and measures with method of literature statistics and text analysis．We got those initial findings: Firstly, the policy intensity of Beijing’s population regulation generally shows a growing trend, and which is characterized by five stages． Secondly, the administrative levels of policy release is diversified and moved down constantly, which result in the intensity of the grass-roots control being obviously increased. Thirdly，the policy means of population regulation have basically got rid of the main dependence on administrative control measures，which entered a new stage of indirect means as the main measure and multiple means coexisting．Fourthly，the measure of population regulation policies has changed from “credentials control”to“industry control”with multiple measures coexisting． In the end，in view of the above findings, the paper obtains a series of policy implications and puts forward relevant policy suggestions．
