The Central Economic Work Conference proposed to promote high-quality development of the "the Belt and Road". The recently issued Strategic Planning Outline for Expanding Domestic Demand (2022-2035) also proposes to "play the role of opening up to the outside world in promoting domestic demand", and takes "high-quality co construction of the the Belt and Road" as an important content. Jointly building the "the Belt and Road" is an important support to enhance the linkage effect of two resources in the domestic and international markets, and an important starting point to achieve steady progress in the domestic economy next year and in the future. Since the proposal of the "the Belt and Road" initiative, it has achieved significant and practical results, and has become a popular international public product and cooperation platform. The "the Belt and Road" is a sunny avenue for everyone to move forward hand in hand, not a private path of one party. All interested countries can join in, participate, cooperate and benefit together. At present, nearly 150 countries and more than 30 international organizations have signed cooperation documents with China to jointly build the "the Belt and Road", promoting the implementation of more than 3000 railway and other infrastructure projects, industrial parks and other industrial projects, schools and hospitals and other livelihood projects, covering developing countries in Asia, Africa and Latin America, as well as some developed countries. Some countries that have not signed cooperation documents also participate in the joint construction of the "the Belt and Road" through third-party market cooperation. Focus on expanding space, China-EU train, investment and financing, and risk prevention and control. First, fully, accurately and comprehensively implement the new development concept, with the goal of high standards, sustainability and benefiting the people's livelihood, consolidate the foundation of connectivity cooperation, expand new space for international cooperation, consolidate the risk prevention and control network, steadily carry out cooperation in health, green, digital, innovation and other new fields, create high-quality landmark projects, and create more "small and beautiful" projects. The project construction should adopt internationally accepted rules and standards and combine them with local realities, taking into account economic growth and affordability of the host country. Compliance operation in finance, audit, tax, environment, labor, safety, etc. Fair competition in bidding, procurement, construction and operation, and resistance to commercial bribery, corruption and unfair competition. Encourage more financial, legal, arbitration, accounting, consulting and other professional service institutions to "go out". Second, consolidate and upgrade the China-EU train. China Europe Express has become the flagship project and landmark brand of the joint construction of the "the Belt and Road", and has become a bridge of close economic and trade ties between China and the joint construction countries. On the basis of "connecting points to form a line" and "weaving lines to form a network", unblock the blocking points and link breakpoints, actively promote the improvement of the traffic capacity of the North and Middle Passages, accelerate the cultivation and development of the South Passage, accelerate the upgrading and reconstruction of the Central Line Railway of the China-Mongolia-Russia Economic Corridor, and accelerate the construction of the China-Kyrgyzstan Railway and other key project breakthroughs. Optimize the spatial layout of the assembly center, explore the establishment of a land-sea integrated assembly center, improve the efficiency of multimodal transport by sea, highway and railway, and constantly improve the functions of the assembly center in five aspects: logistics service, hub economy, train organization, train economy and opening up. Copy and promote the "train+park+Silk Road e-commerce" model. Optimize the layout of overseas warehouses along the route of the train, and establish and improve a market-oriented country for investment, construction and operation