The principle of combustion accelerator was analyzed,and the application of combustion accelerator in cement production was summarized and analyzed.The results show that after adding combustion accelerator,there is no negative impact on the quality of clinker kiln,and the ton of standard coal can save 2.7 kg,the carbon saving per ton of standard coal is 7.182 kg,the direct economic benefit is 2.25 million yuan/year,and the environmental benefit is 725,000 yuan/year.It adds a new path for energy conservation and carbon reduction in the cement industry.