A scenario setting has been made for the land-use carbon emissions in Hunan Province, followed by an inquiry made into the growth evolution for carbon emissions. Based on the principle and method of system dynamics (SD), with a consideration given to the effects of economy, energy, land use and population on land-use carbon emissions in Hunan Province, SD model of land-use carbon emissions in Hunan Province is to be constructed, with seven scenarios, including trend development, set up for the dynamic simulation. According to the trend development scenario, the land-use carbon emissions in Hunan Province will increase from 76.488 million tons to 112.178 million tons in 2017—2030, with an average annual growth rate of 3.33%. Compared with the other six policy scenarios, and based on the scenarios of technological progress and energy structure optimization, the land-use carbon emissions of in the target year are to be reduced by 2.064 million tons and 5.175 million tons, respectively, with an average annual growth rate of 3.17% and 2.89%. With all the policies integrated in a control scenario, the land-use carbon emissions in the target year are to decrease by 5.606 million tons compared with the trend development scenario, with its emission reduction effect the most significant.