Abstract:The digital economy is an important engine for improving the quality of China's economic development. An indicator system for digital economy and high-quality development was constructed, the level of digital economy development and high-quality development in 30 provinces of China from 2010 to 2021 were measured, and the impact of digital economy development on regional high-quality development during the sample period was examined. It is found that the digital economy has a significant positive impact on high-quality regional development, with a positive spillover effect within a certain spatial range, but there is regional heterogeneity. Based on this, it is necessary to strengthen the construction of digital infrastructure, consolidate the foundation of digital economy development, attach importance to the role of digital economy as a booster for high-quality development, and formulate differentiated development strategies.