On March 5，2019，Premier Li Keqiang proposed in the “Government Work Report” that the enrollment of higher vocational colleges will increase by 1 million in 2019. Since the Third Plenary Session of the Eleventh Central Committee of the Communist Party of China，the construction of rule of law in China’s higher vocational education can be divided into three stages：policy support，legislative guarantee and comprehensive administration of education according to law，gradually forming a legal system for the development of China’s higher vocational education. Using the methods of historical research and visiting investigation，this paper examines and studies the enrollment expansion of vocational education from the perspective of rule of law. Under the requirements of comprehensively administering the country and teaching according to law，there are still some problems in higher vocational education，such as imperfect supporting policies，inadequate implementation of laws，and the failure to form the legal thinking and the ability to handle affairs according to law. Therefore，we should strengthen legislation，form a legal policy system suitable for comprehensively administering education according to law，enhance the legal thinking and ability of running schools according to law，form a school management system suitable for running schools according to law，pay attention to the publicity of running schools according to law，form a strong atmosphere of running schools according to law，etc.，and strengthen the construction of comprehensively administering education according to law in higher vocational education，thus providing a strong legal guarantee for the quality-oriented enrollment expansion of higher vocational education.