In the context of the significant strategic decisions surrounding carbon peaking and carbon neutrality Jiangsu as a majorprovince in terms of energy consumption and carbon emissions stands out as a key region with significant potential for carbon reductionin China. Taking the panel data at the city level in Jiangsu Province as an example this study constructs an empirical model tomeasure the impact and pathways of digital technology on the low-carbon economy. First digital economy has a significant negativeeffect on the urban per capita carbon emission intensity while has a significant increasing effect on per capita carbon emissions. Digitaltechnology plays a significant role in promoting carbon reduction effect related to the supply and demand of clean energy but has nosignificant impact on carbon emissions from total electricity consumption and industrial electricity consumption. Second the impact ofdigital technology on the per capita carbon intensity and per capita carbon emissions varies with initial carbon emission in Jiangsu Provinceexhibits heterogeneity in terms of both high and low carbon emissions and geographical regions. In terms of the mechanism of actiondigital technology can influence the level of per capita carbon intensity by adjusting the industrial structure and affect per capitacarbon emissions by changing the carbon emissions from clean energy consumption. To sum up the government should apply policiesaccording to local conditions strengthen the driving effect of pilot low-carbon ecological parks and build an intelligent service systemfor the supply and demand of clean energy.