To date, no empirical study has focused on understanding the evolution process of China's college admission policies and clarifying its hidden evolution logic. Based on the advocacy coalition framework (ACF), this study determines different advocacy coalitions and their belief systems during the evolution process of independent enrollment policy, as well as various driving forces that affect the process. The social network analysis methods are adopted to delineate alliance structures formed by actors with different policy beliefs in the policy subsystems which change over time. This study chooses news reports included in the China National knowledge infrastructure (CNKI) database as the data source, and identifies 328 related news reports to be coded in the analysis. This article not only provides the evolution logic of independent enrollment policy, but also bridges the research gap and therefore enriches the broad literature on the application of Advocacy Coalition Framework in Eastern countries.