The advantage of ultra-large-scale market is a new comparative advantage formed in China's economic development. To fully exploit and give full play to the advantages of ultra-large-scale market and gradually establish the domestic ultra-large-scale unified open market with orderly competition is of vital importance to stimulate modern economic growth, promoting specialized division of labor, siphon production factors and innovation resources.The key to fully exploiting the advantage of ultra-large-scale market is to expand the effective demand scale of domestic market. However, from the perspective of China's reality, there are at least three factors, resulting in the lack of effective demand scale, which further restricts the play of the advantages of the ultra-large-scale market. Under the export-oriented economy, the domestic household consumption level is insufficient. Under the condition of opening-up, the competitiveness of local commodity market is insufficient. There is big income gap and insufficient demand for innovative products.How to base on and give full play to the advantages of China's ultra-large-scale market, fully release the potential of the demand of the domestic market, and continuously strengthen the internal driving force for high-quality economic development? We should promote institutional innovation in income distribution and social security, and foster a medium-and high-end consumer market. We should promote institutional innovation in the construction of public goods and industrial investment, and promote and optimize investment demand. We should also promote the elimination of the segmentation of domestic market of institutional innovation and promote the development of the integration of domestic market.
