Abstract: The Yangtze River Economic Belt is China’s “golden economic belt”， and of great significance to explore the coordination between green development and digital economy for the realization of “Chinese-style modernization”. Taking 11 provinces along the Yangtze River Economic Belt as research objectives, this paper constructed the coupling coordination index system between green development and digital economy. By a combination of the spatial autocorrelation model and the obstacle degree model,this paper evaluated the development status, the evolution characteristics of the coupling coordination and the main obstruction factors that may restrict the coupling coordination degree, from the perspectives of geography and time-interspace. The main conclusions were as follows: (1) The level of green development and digital economy in the Yangtze River Economic Belt showed an upward trend. The coupling and coordination degree was also increasing year by year. However, the overall coupling and coordination degree is not high in terms of the sufficient development in time and the balanced development in space. (2) The spatial autocorrelation analysis showed that the coupling coordination degree  demonstrated significant positive spatial correlation characteristics. An obvious spatial correlation characteristics was also indicated in the adjacent provinces. (3) The obstruction factors of the rule layer that restricted the coupling coordination degree of green development and digital economy were:  economic development > digital economy development > social service > ecological environment, in an order from high to low. There are mainly 9 obstruction factors in the top 7 of element layer, with heterogeneity among different provinces and cities. Based on these findings, policy suggestions were put forward in order to promote the positive interaction between green development and digital economy for the achievement of “Chinese-style modernization”.