In order to explore the development synergy of digital economy and green innovation, an indicator system for the development of digital economy and green innovation is constructed based on the panel data of China,s provincial administrative regions from 2013 to 2020.Then partial correlation analysis and coupling coordination model are used to study the difference and synergy of digital economy and green innovation development levels in various provincial administrative regions. The research results indicate that there are inter provincial differences in the development level of digital economy and green innovation in each provincial-level administrative region, but there is synergy in the development of the two, and there are inter provincial differences in the degree of synergy. The research conclusion can help to provide empirical reference for the “dual transformation” transformation, improve the collaborative development path of the digital economy and green innovation, and provide policy recommendations for achieving high-quality collaborative development of the digital economy and green innovation.