"It is clear that we must adhere to and improve the basic socialist economic system, make the market play a decisive role in resource allocation, give better play to the role of the government, grasp the new development stage, implement the new development concept of innovation, coordination, green, openness and sharing, accelerate the construction of a new development pattern dominated by the domestic cycle and mutually promoted by the domestic and international cycles, promote high-quality development, coordinate development and security". Realizing the Chinese dream of the great rejuvenation of the Chinese nation is of great guiding significance. The basic socialist economic system not only embodies the superiority of the socialist system, but also adapts to the development level of social productive forces in the primary stage of socialism in China. It is a great creation of the party and the people. After the reform and opening up, our Party established public ownership as the main body and the common development of various ownership economies as China's basic economic system, and continuously improved the basic socialist economic system with the advancement of practice and deepening of understanding. On this basis, the Fourth Plenary Session of the 19th CPC Central Committee expounded the connotation of China's basic economic system for the first time from the aspects of ownership structure, distribution system and resource allocation mode, formed major theoretical innovation achievements of socialist political economy with Chinese characteristics, and raised our party's understanding of the basic socialist economic system to a new level. Public ownership is the main body, the economy of various forms of ownership develops together, distribution according to work is the main body, and various modes of distribution coexist. The socialist market economic system and other basic socialist economic systems stipulate the basic principles of China's economic relations, clarify people's status and mutual relations in production, distribution, exchange and consumption, and ensure the socialist attribute of the economic system, which has a basic and decisive position in the economic system. On the one hand, it comprehensively transcends the logic of capitalist resource allocation and the relationship of interest distribution, and can effectively prevent the disadvantages of polarization, class opposition, capital monopoly, foreign plunder and frequent crises that are difficult to overcome in the capitalist economic system, reflecting the superiority of the socialist system; On the other hand, it can fully mobilize the enthusiasm of all kinds of market subjects, effectively overcome the disadvantages of the traditional planned economic system and promote the rapid development of productive forces. The basic socialist economic system is an important institutional basis for creating the miracle of China's development. We should uphold and improve the basic socialist economic system and build an economic system that is more effective, logical, connected and matched. Making the market play a decisive role in the allocation of resources and giving better play to the role of the government is the Chinese answer to the world-wide economic problem of the relationship between the government and the market. The core issue of economic system reform is to properly handle the relationship between the government and the market. In 1992, the 14th National Congress of the Communist Party of China clearly put forward that the goal of China's economic system reform is to establish a socialist market economic system, and put forward that the market should play a basic role in resource allocation under the macro-control of socialist countries. Since then, China's socialist market economic system has been continuously established and improved, but there are still many problems that restrict the vitality of market subjects and hinder the full play of market and value laws. The Third Plenary Session of the 18th CPC Central Committee proposed to "make the market play a decisive role in resource allocation and give better play to the role of the government". The 19th CPC National Congress stressed "make the market play a decisive role in resource allocation and give better play to the role of the government", and made a new positioning for the relationship between the government and the market. This new orientation is a new breakthrough in our party's understanding of the law of socialist construction with Chinese characteristics, a new achievement of the Sinicization of Marxism, and a strong impetus to the development of China's socialist market economy. Since the Third Plenary Session of the 18th CPC Central Committee, focusing on making the market play a decisive role in resource allocation and giving better play to the role of the government, we have deepened the reform of the economic system, accelerated the formation of institutional mechanisms and development modes leading the new normal of economic development, accelerated the reform conducive to innovative development, coordinated development, green development, open development and shared development, and accelerated the reform conducive to improving the efficiency of resource allocation The reform of improving the quality and efficiency of development, accelerating the reform that is conducive to fully mobilizing the enthusiasm of all parties, accelerating the reform that is conducive to the modernization of the national governance system and governance capacity, giving full play to the key role of comprehensively deepening reform in building a new development pattern, and injecting a strong driving force into economic development. Under the socialist market economic system, the role of the market and the role of the government complement each other, promote and complement each other, providing a solid institutional guarantee for the sustained and healthy development of economy and society. The new development stage is a stage of building a modern socialist country in an all-round way and marching towards the goal of the second century. It is a new stage in which our party leads the people to usher in a historic leap from standing up, becoming rich to becoming strong. It is the fundamental basis for our party to clarify the central task of the current stage. Entering a new stage of development is a great leap forward in the historical process of the great rejuvenation of the Chinese nation. The new development concept answers a series of theoretical and practical questions about the purpose, driving force, mode and path of development, and expounds our party's political position, value orientation, development model, development path and other major political issues on development. Complete, accurate and comprehensive implementation of the new development concept is not only the working requirement of economic and social development, but also a very important political requirement. The construction of a new development pattern with domestic circulation as the main body and domestic and international double circulation promoting each other is a major decision made according to the changes of China's development stage, environment and conditions, especially based on the changes of China's comparative advantage. It is a systematic and deep-seated change related to the overall situation. It is a strategic plan based on the present and focusing on the long term. It is a strategic choice to reshape China's new advantages in international cooperation and competition. To build a new development pattern, we should accelerate the construction of a complete domestic demand system, accelerate the self-reliance of science and technology, promote the optimization and upgrading of industrial chain and supply chain, promote agricultural and rural modernization, improve people's quality of life, and firmly hold the bottom line of safe development. Grasping the new development stage is the realistic basis for implementing the new development concept and constructing the new development pattern. Implementing the new development concept provides an action guide for grasping the new development stage and constructing the new development pattern. Constructing the new development pattern is a strategic choice to deal with the opportunities and challenges of the new development stage and implement the new development concept. High quality development is the theme of China's economic and social development during the 14th five year plan and even longer. Promoting high-quality development is an inevitable requirement for maintaining sustained and healthy economic development, adapting to the changes of China's main social contradictions, building a well-off society in an all-round way and building a socialist modern country in an all-round way, and following the laws of economic development. It should be noted that high-quality development is not only an economic requirement, but also a general requirement for all aspects of economic and social development; It is not only a requirement for economically developed regions, but a requirement that must be implemented for the development of all regions; It is not a one-time requirement, but a requirement that must be adhered to for a long time. In order to promote high-quality development in the new development stage, we must fully, accurately and comprehensively implement the new development concept, accelerate the construction of a new development pattern, take deepening the supply side structural reform as the main line, adhere to quality first and benefit first, effectively change the development mode, promote quality reform, efficiency reform and power reform, so as to better benefit all the people and constantly realize the people's yearning for a better life. It is a major principle for our party to coordinate development and security, enhance the sense of hardship and be prepared for danger in times of peace. At present, the great rejuvenation of the Chinese nation has entered a critical period, and the great changes in the world that have not been seen in a century have accelerated the evolution. We are facing unprecedented risks and challenges. We must strengthen the bottom line thinking and firmly hold the bottom line of safe development on the basis of insisting that development is the first priority. On the one hand, security is the premise of development. Only national security and social stability can create a good environment and preconditions for high-quality development. On the other hand, development is the guarantee of security. Only by promoting sustained and healthy economic and social development can we build a solid material foundation for national prosperity, people's well-being and social harmony and stability. To coordinate development and security, we must adhere to the overall concept of national security and strengthen the national security system and capacity-building; Grasp the relationship between openness and security, and enhance the ability to dynamically safeguard national security in the environment of opening to the outside world; Put the protection of people's lives and safety in the first place, and promote the people to live and work in peace and contentment, social stability and order, and long-term stability of the country. A safer way of development. (Xinhua News Agency)