This paper explored the impact of market-oriented allocation of industrial land factors on regional carbon emission reduction in the new stage of carbon emission reduction governance,thus providing reference for the enhancement of the market-oriented allocation of factors.This paper,based on carbon emission data in 30 provinces of China from 2009 to 2020,employed a double fixed model to examine the impact of market-oriented allocation of industrial land on regional carbon emission reduction and its working mechanism.The results indicated that the market-oriented allocation of industrial land had significantly promoted the regional carbon emission reduction and the results held true after plenty of robust testing.Energy intensity and the low-carbon level of the energy consumption structure had a positively moderating effect on the carbon emission reduction which would reinforce the promotion effect of market-oriented allocation of industrial land on carbon emission reduction while capital misallocation had a negatively moderating effect on the carbon emission reduction which would weaken the promotion effect between them.The promotion effect of market-oriented allocation of industrial land on carbon emission reduction was more significant in northern China and regions of low industrialization;What's more,further analysis revealed that the market-oriented allocation of industrial land had significantly restrained the level of regional pollutant emissions,as well as distorted industrial land transfer prices and increased industrial land transfer areas would both inhibit the regional carbon emission reduction effect,while the methods of auction,bidding and listing for industrial land transfer significantly played an enhanced role in this aspect.To further implement the carbon emission reduction goals,it was advisable to increase the degree of market-oriented allocation of industrial land factors,fully leverage market mechanisms to moderately weaken government intervention,and maximize the promotion effect of dynamic and continuous market-oriented allocation policies of industrial land on long-term regional carbon emission reduction effect.