This book, based on the theory of Marxism-Leninism, aims to study the essence, content and features of various legal systems in China in different historical periods, as well as the rules of the development of Chinese legal systems. It effectively combines classic analysis and historical analysis to probe historical facts and elaborate the historical role of the legal system, revealing both the general and the specific rules of the development of China s legal system on the basis of the existing relevant research. The subject matter is of abundant theoretical and practical significance, as it enriches Marxist legal studies, deepens readers' understanding of China s legal civilization and offers guiding principles for the creation of socialist legal systems with Chinese characteristics. It discusses the trends in thinking on the reconstruction of the legal system; changing laws; western legal culture; the legal system in the period of westernization, constitution and reform; preparation for constitutionalism; modification of the law during the late Qing Dynasty; criminal, civil and commercial legislation; and judicial reforms in the modern era as well as the various ups and downs and cases of malconduct after the founding of the People's Republic of China.