This paper comprehensively measures the development level of digital economy in 30 provinces from 2013 to 2020.Based on manufacturing product level data,spatial econometric model,threshold model and intermediary model are used to carry out empirical tests.The results show that digital economy can have a significant positive impact on the export competitiveness of manufacturing industry.Then innovation capability and industrial structure upgrading play an intermediary role in the promotion of digital economy to manufacturing trade.And the contribution of digital economy to export trade is not a simple linear relationship.Based on this,the article gives several countermeasures to promote the high-quality development of digital economy and enhance the international competitiveness of manufacturing industry.
digital economymanufacturing export competitivenessmediating effectthreshold model