Since the 18th National Congress of the Communist Party of China, the Party Central Committee with Comrade Xi Jinping as the core has focused on adhering to and developing socialism with Chinese characteristics, deepened its understanding of the laws governing the Communist Party, socialist construction and the development of human society, put forward a series of new concepts, ideas and strategies for governing the country, enriched and developed the theoretical system of socialism with Chinese characteristics, opened up a new realm of Marxist development in the 21st century, and continued to write a new chapter of socialism with Chinese characteristics. In the past five years since the 18th National Congress of the Communist Party of China, the most fundamental reason why the Party and the country have been able to achieve a series of important achievements in various undertakings is that they have been guided by General Secretary Xi Jinping's series of important speeches and the scientific guidance of new concepts, ideas and strategies for governing the country. I. The main content of the spirit of General Secretary Xi Jinping's series of important speeches is rich in content, broad and profound, focusing on the party's governance of the country under the new situation, and put forward a series of interconnected and interconnected new concepts, ideas and strategies, involving productive forces and production relations, economic foundation and superstructure, covering all fields of economy, politics, culture, society, ecological civilization construction and party building, including adhering to and developing socialism with Chinese characteristics and realizing the "two centenary goals", To realize the Chinese dream of the great rejuvenation of the Chinese nation, the overall layout of the "five-in-one" and the "four comprehensive" strategic layout, leading the new normal of economic development with new development concepts, supply-side structural reform, socialist democratic politics with Chinese characteristics, ideological struggles and cultural strengthening strategies, people-centered development thinking, implementing targeted poverty alleviation and winning the battle for poverty alleviation, building a community with a shared future for mankind, serious inner-party political life, taking party building as the greatest achievement, overall national security concept, and the road to strengthening the military with Chinese characteristics, Wait a minute. These new concepts, ideas and strategies have initially formed a systematic, complete and logical scientific theoretical system, providing scientific theoretical guidance and action guidelines for adhering to and developing socialism with Chinese characteristics, realizing the "two centenary goals" and the Chinese dream of the great rejuvenation of the Chinese nation. II. Major Theoretical and Practical Guiding Significance of the Spirit of General Secretary Xi Jinping's Series of Important Speeches, the latest achievement of the theoretical system of socialism with Chinese characteristics, and a new development of Marxism in contemporary China, which has rich content and ideological connotations of the times and has great political, theoretical, practical and methodological significance. General Secretary Xi Jinping's series of important speeches have enriched and developed the content of the theoretical system of socialism with Chinese characteristics. Since the 18th National Congress of the Communist Party of China, the Party Central Committee with Comrade Xi Jinping as the core has united and led the whole Party, the whole army and the people of all ethnic groups throughout the country to hold high the great banner of socialism with Chinese characteristics, and has made a series of achievements of great practical significance and far-reaching historical significance in reform, development and stability, internal and foreign affairs, national defense, and the management of the party and the country, pushing the great cause of socialism with Chinese characteristics to a new stage, and further adhering, enriching and developing the theory of scientific socialism. Comrade Xi Jinping stressed: "Socialism with Chinese characteristics is socialism and not any other ism, and the basic principles of scientific socialism cannot be lost. "Socialism with Chinese characteristics is the dialectical unity of the theoretical logic of scientific socialism and the historical logic of China's social development, and is a scientific socialism rooted in the Chinese land, reflecting the will of the Chinese people, and adapting to the development and progress requirements of China and the times. The theory and practice of socialism with Chinese characteristics have increasingly shown strong comparative advantages and incomparably great appeal. General Secretary Xi Jinping's series of important speeches are the latest achievements of the Sinicization of Marxism. General Secretary Xi Jinping pointed out: "Marxism is the fundamental guiding ideology for building our party and state. If we deviate from or abandon Marxism, our Party will lose its soul and lose its direction. "Since the 18th National Congress of the Communist Party of China, General Secretary Xi Jinping has insisted on using Marxist positions, viewpoints and methods to study and solve new practical issues, attached great importance to promoting theoretical innovation on the basis of practical innovation, stressed the need to continuously deepen understanding and sum up experience according to the changes of the times and the development of practice, and put forward a series of innovative and important ideological views, opening up a new realm of Sinicization of Marxism. Under the new historical conditions, continuously promoting the Sinicization of Marxism is a valuable experience of the CPC's continuous success. Mastering and applying Marxist stands, viewpoints, and methods is our housekeeping ability to defeat the enemy and do all our work well. We must persist in arming the whole party with the latest theoretical achievements of Sinicization of Marxism, persist in guiding new practice with the developing Marxism, strive to make new theoretical generalizations from practice, and promptly upgrade the principles and policies that have achieved results in practice to the system of the party and the state, and unify the road, theoretical system, system, and culture in the great practice of socialism with Chinese characteristics. Through the development of Marxism, we can better adhere to Marxism, effectively resist the interference and influence of various erroneous trends of thought, constantly open up a new realm for the development of Marxism in the 21st century, and let contemporary Chinese Marxism radiate a more brilliant light of truth. General Secretary Xi Jinping's series of important speeches are a theoretical guide for realizing the Chinese dream and building socialist modernization. Building a prosperous, strong, democratic, civilized, and harmonious modern socialist country and realizing the great rejuvenation of the Chinese nation are the greatest dreams of the Chinese people since the Opium War and the supreme and fundamental interests of the Chinese nation. Today, all the struggles of more than 1.3 billion of us are, in the final analysis, aimed at achieving this great goal. In order to achieve this great goal, our party has established the "two centenary goals", that is, to double the GDP and per capita income of urban and rural residents compared with 2010 by 2020, and build a moderately prosperous society in an all-round way; By the middle of the 21st century, we will build a prosperous, strong, democratic, civilized, and harmonious modern socialist country and realize the great rejuvenation of the Chinese nation. In order to achieve this great goal, the Party Central Committee with Comrade Xi Jinping as the core, on the basis of scientifically summing up historical development experience, has determined the "four comprehensive" strategic layout for coordinated promotion, put forward five major development concepts of "innovation, coordination, green, openness and sharing", clarified new development ideas, and interpreted the new pattern of development. In the economic field, give play to the decisive role of the market in resource allocation, better play the role of the government, accelerate the implementation of innovation-driven development strategies, promote supply-side reform, and adapt, grasp and lead the new normal of economic development; Give full play to socialist democracy in the political field; building a socialist cultural power in the field of culture; Improving people's livelihood and innovating social governance in the social field; In the ecological field, vigorously promote the construction of ecological civilization, strive to build a beautiful China, and realize the sustainable development of the Chinese nation. It can be said that we are now closer to realizing the goal of the great rejuvenation of the Chinese nation than at any time in history, and we are more confident and capable of achieving this goal than at any time in history. General Secretary Xi Jinping's series of important speeches are the guiding ideology for strengthening party building and continuing to promote comprehensive and strict party management. The key to running China's affairs well lies in the party, and the key lies in the party managing the party and administering the party strictly. In the past five years since the 18th National Congress of the Communist Party of China, the Party Central Committee with Comrade Xi Jinping as the core has persisted in promoting the strict management of the Party in an all-round way, adhered to the close integration of ideological party building and system management of the Party, maintained the advanced and pure nature of the Party, focused on improving the ruling ability and leadership level, carried out in-depth mass line education, strengthened the construction of Party discipline, strictly enforced Party discipline, severely cracked down on corrupt elements within the Party, hit both "tigers" and "flies", and focused on enhancing the ability to resist risks and resist corruption and degeneration, and achieved a series of major victories. It has provided an important guarantee for opening up a new situation in the cause of the party and the state. To continue to promote the strict management of the party in an all-round way and to strengthen and standardize inner-party political life, it is necessary to firmly establish political awareness, awareness of the overall situation, core awareness, and awareness of alignment, unswervingly safeguard the authority of the party Central Committee and the centralized and unified leadership of the party Central Committee, take the party constitution as the fundamental observance, adhere to the party's political, ideological, organizational and mass lines, focus on enhancing the political, epochal, principled, and combative nature of inner-party political life, and strive to enhance the party's ability to purify, improve, renovate and improve itself. Efforts should be made to improve the party's leadership and ruling standards, enhance its ability to resist corruption, guard against degeneration and resist risks, safeguard the authority of the party Central Committee, ensure the unity and unity of the party, and maintain the party's advanced nature and purity, and strive to form a political situation in the whole party that is both centralized and democratic, disciplined and free, unified in will, and comfortable and lively in the individual's mood, so as to ensure that the party unites and leads the people to constantly open up a new situation in the cause of socialism with Chinese characteristics. General Secretary Xi Jinping's series of important speeches have applied the historical experience in the construction of socialism with Chinese characteristics to the new era, solved new problems, promoted new practices, enriched and developed the theory of scientific socialism, and promoted the Sinicization, eraization and popularization of Marxism. General Secretary Xi Jinping pointed out: "In today's world, if any political party, country or nation can be confident, then the Communist Party of China, the People's Republic of China and the Chinese nation have the most reason to be confident." "The path of socialism with Chinese characteristics, under the guidance of Marxism, has been continuously explored and developed in practice, and has been formed in the process of solving the problems facing China according to the national conditions. China's development is rooted in Chinese soil and has its own unique experience. History and reality tell us that socialism with Chinese characteristics is not only a great cause that we must continue to advance, but also a fundamental guarantee for us to open up the future. Looking to the future, we must adhere to the guidance of Marxism-Leninism, Mao Zedong Thought, Deng Xiaoping Theory, the important thinking of "three represents" and the scientific outlook on development, thoroughly implement the spirit of General Secretary Xi Jinping's series of important speeches and the new concepts and new ideas and strategies for governing the country, strengthen our confidence in the road, theory, system and culture of socialism with Chinese characteristics, and provide Chinese solutions for mankind's exploration of a better social system. 3. Strengthening the study, research and publicity of the spirit of General Secretary Xi Jinping's series of important speeches is the most important task for Marxist theorists in contemporary China, and the positions, viewpoints and methods that run through General Secretary Xi Jinping's series of important speeches are embodied in the new concepts and new ideas and strategies for governing the country, and in the great practice of socialism with Chinese characteristics, and reflect in a concentrated way the political character, value pursuit and spiritual style of contemporary Chinese communists. General Secretary Xi Jinping's series of important speeches adhere to the basic principles of Marxism, closely combine the national conditions of contemporary China and the characteristics of the times, and continuously promote the Sinicization of Marxism, laying a strong ideological foundation for the development of Marxism in China in the 21st century. To strengthen the study, research and publicity of the spirit of General Secretary Xi Jinping's series of important speeches, philosophy and social sciences have an irreplaceable and important position, and philosophy and social science workers have an irreplaceable and important role. To deeply study, study and publicize the spirit of General Secretary Xi Jinping's series of important speeches, the most important thing is to deeply understand and master the Marxist positions, viewpoints and methods that run through them. In order to deeply study Marxism-Leninism, Mao Zedong Thought, Deng Xiaoping Theory, the important thinking of "three represents" and the scientific outlook on development, especially the spirit of General Secretary Xi Jinping's series of important speeches and the new concepts and new ideas and strategies for governing the country, our institute organized and compiled the "Research Report on the Latest Achievements of the Sinicization of Marxism". This is a kind of wisdom that we have made by organically combining Marxist academic research, theoretical propaganda and practical application to serve the cause of socialism in China and the world.（AI翻译）