Abstract:Digital economy and technological innovation play an important role in boosting the development of green supply chains and realizing the synergistic development of economic and environmental benefits. This paper selects the panel data of 30 provinces in China from 2013 to 2022, constructs a dynamic spatial econometric model, discusses the impact of digital economy, technological innovation and their synergies on the development level of green supply chain, and analyzes the regional differences and spatial evolution characteristics of the development level of digital economy, technological innovation and green supply chain. The results show that digital economy and technological innovation promote the development level of green supply chain, and there is a positive spatial spillover effect; The synergistic effect of digital economy and technological innovation inhibits the development of green supply chain and exerts negative spatial spillover effect. The focus of digital economy, technological innovation and green supply chain development in China is moving from east to west and from north to south. Among them, digital economy is the main reason for the gap between the development level of green supply chain in eastern and western regions, and technological innovation plays a major role in the gap between the development level of green supply chain in southern and northern regions. According to the above research conclusions, it is proposed that the western region should give priority to the development of digital economy, and the northern region in the eastern region should give priority to improving technological innovation ability, and develop digital economy and innovative technology according to local conditions. The conclusions and suggestions of this study provide some theoretical references for the green, efficient and coordinated development of supply chain.