This book is a follow-up research and review of the development of political science and political development in China this year, and has been published in four consecutive series. This series collects the theoretical and practical research results of China's political science and political development in 2019, mainly including the new progress of China's political construction, the new prospects of China's political science research, the new highlights of the work of the Chinese University and its research, the new development of multi-party cooperation and political consultation system under the leadership of the Communist Party of China, the new scene of China's regional ethnic autonomy system, the new expansion of China's grassroots social mass autonomy system, China's great achievements in fighting corruption, the new application of Chinese political science research methods, New explorations and achievements in the study of the history of Chinese Western political thought, new hotspots in the study of Chinese public administration, new features of the study of Chinese and foreign political systems, new trends in the study of China's international politics and international relations, new trends in the study of comparative politics in China, new atmosphere in the study of public policy in China, and new situation in the study of political communication in China.（AI翻译）