The world today is facing great changes not seen in a century, and the international situation is complex. The report of the 20th National Congress of the Communist Party of China put forward that we must fully, accurately and comprehensively implement the new development concept, adhere to the reform direction of the socialist market economy, adhere to the high-level opening up, and accelerate the construction of a new development pattern with the domestic big cycle as the main body and the domestic and international double cycles promoting each other. Building a unified national market is our party's active choice based on the new historical starting point, new changes in domestic and international economic situations, and the objective laws of economic development. It is the basic support and internal requirement for building a new development pattern. It is necessary to actively adapt to the new changes in the economic situation. The world economy has suffered a severe recession, the supply chain cycle of the industrial chain has been blocked, international trade and investment have shrunk, and the bulk commodity market has been in turmoil. According to the data released by the National Bureau of Statistics, in November last year, the national economy withstood multiple unexpected pressures at home and abroad, maintained a recovery momentum, and generally operated within a reasonable range. From January to November, industrial production continued to grow, and high-tech manufacturing grew rapidly; The scale of investment in fixed assets continued to expand, and investment in high-tech industries grew rapidly; The import and export of goods kept growing, and the trade structure continued to optimize. China's economic development has strong resilience and potential, but some difficulties and challenges cannot be ignored. Internationally, with the continuous evolution of geo conflict and the impact of epidemic, the bottleneck problem of the global supply chain has not been alleviated, and inflationary pressure is increasing. Domestically, the epidemic situation is still an important factor affecting the smooth operation of the economy, and the triple pressures of shrinking demand, supply shocks and weakening expectations are still large. It is against the backdrop of such an economic environment that the Opinions of the CPC Central Committee and the State Council on Accelerating the Construction of a National Unified Market (hereinafter referred to as the Opinions) pointed out that we should speed up the establishment of a national unified market system and rules, break local protection and market segmentation, break through the key blockages that constrain the economic cycle, promote the smooth flow of commodity factor resources in a wider range, and accelerate the construction of efficient, standardized, fair competition Fully open national unified market. This is an inevitable requirement to actively adapt to the new changes in the economic situation. The report of the 20th National Congress of the Communist Party of China pointed out that high-quality development is the primary task of building a socialist modern country in an all-round way. This means that in the future development of China's economy, we must pay more attention to "quality" rather than "quantity", shift from "scale expansion" to "industrial upgrading", follow the objective laws of economic development, and steadily promote high-quality economic development. Building a unified national market is an important "starting point" for promoting high-quality economic development. In today's world, the market is the most scarce resource. China has the advantage of super market resources, and the advantage of commodity market scale is obvious. From January to November last year, although the market sales decreased slightly, the sales of basic commodities and online retail grew rapidly. China's online retail sales totaled 12458.5 billion yuan, up 4.2%. China's consumer market continues to expand, showing strong market potential. The huge domestic demand market has become the main engine of China's economic growth. At the same time, China still has the problem that the market is "large but not strong", and the market system has institutional rules