Abstract: Using the calculation model and carbon emission coefficients adopted by Energy Research Institute, National Development and Reform Commission (2003), the amount of carbon emissions due to energy consumption in Henan Province were calculated from 1995 to 2009. Based the LMDI method, the changes of aggregated CO₂ were analyzed. The results show that the carbon emissions increased year by year, and the growth rate of carbon emissions had gotten quickly since 2002, but, it become slowly after 2007 with implementing the policy of energy saving and emission reduction. The carbon intensity in Henan was lowed during 1995-2002, increased in 2002-2004 and cut again after 2004. Economic growth was the main factor for the increase the carbon emission per capita, energy efficiency was the main factor to decrease, and energy mix was the little factor. To cut carbon emissions, optimize energy mix and improving energy efficiency are the both important approaches.