In order to further study, publicize and implement the spirit of the Twentieth National Congress of the Communist Party of China, integrate the thoughts of the whole Party and the people of all ethnic groups into the spirit of the Twentieth National Congress of the Communist Party of China, and focus our efforts on the tasks set by the Twentieth National Congress of the Communist Party of China, we have made the following decisions. 1、 The 20th National Congress of the CPC was held in Beijing from October 16 to 22. This is a very important conference held at a critical moment when the whole Party and the people of all ethnic groups embark on the new journey of building a socialist modern country in an all-round way and march towards the second centenary goal. It is also a conference to hold high the banner, gather strength and forge ahead in unity. This paper expounds the major issues such as opening up a new realm of the sinicization and modernization of Marxism, the Chinese characteristics and essential requirements of Chinese path to modernization, carries out a strategic plan for building a socialist modern country in an all-round way and promoting the great rejuvenation of the Chinese nation in an all-round way, and makes a comprehensive deployment for comprehensively promoting the overall layout of "Five in One" and the strategic layout of "Four Comprehensions". It is the political declaration and action program that the Party unites and leads the people of all ethnic groups to win the new victory of socialism with Chinese characteristics, and it is the programmatic document of Marxism. The Constitution of the CPC (Amendment) reflects the achievements of the Party's theoretical innovation, practical innovation, and institutional innovation since the 19th National Congress of the Communist Party of China, and reflects the important thoughts, important views, major strategies, and major initiatives identified in the report of the 20th National Congress of the Communist Party of China. It puts forward clear requirements for upholding and strengthening the Party's all-round leadership, unswervingly promoting comprehensive strict governance of the Party, upholding and improving Party building, and promoting the Party's self revolution. Studying, Propagandizing and Implementing the Spirit of the Twentieth National Congress of the Communist Party of China