Abstract: Since the founding of the People's Republic of China, China's postgraduate enrollment system has become more and more perfect, and its institutional changes have experienced the stage of Su, the preliminary exploration stage, the comprehensive suspension stage, the restoration of the initial construction stage, the standardized development stage, the rapid development stage, and the connotation development stage. The changes in the enrollment system for postgraduate students in China are deeply affected by the deep structural factors such as the changes in the national macro-institutional environment, political development and key actors. The path dependence factors of institutional change include the one-way leadership of the government, the need of political and economic development, the traditional examination concept and the academic evaluation method. To this end, it is necessary to reverse the traditional examination concept and academic evaluation methods, build a multi-enrollment path with specific classification and types, establish a specialized third-party examination institution, and promote the separation of recruitment.