Research and Empirical Verification of the Path of Digital-real Integration on High-quality Economic Development

The integrated development of the digital economy and the real economy provides important support and impetus for high-quality economic development. Taking the Huaihe River Eco-Economic Belt as an example, this paper sorts out the impact mechanism and path of the development of "digital-real integration" on high-quality economic development, and collects the panel data of 25 provinces in the Huaihe Eco-Economic Belt from 2010 to 2020, and uses the entropy TOPSIS method to calculate the high-quality economic development index and the "digital-real integration" development index, and then uses the PVAR model and panel data regression model to conduct an empirical study on the relationship between the two. The results show that the "integration of data and reality" is the reason for the high-quality economic development in the short term, and the impact of the integrated development of the two on the high-quality economic development continues to increase in the long run. "Digital-real integration" has a positive effect on high-quality economic development, but there are regional differences in the impact, especially in the Huaihai Economic Zone in the north, and weaker in the inland rising areas in the central and western regions.