The development of China 's low carbon economic needs to be based around characteristics of various regions and take some targeted measures, so we need to understand the characteristics of the CO2 emissions and the driving force of the influence factors. In this paper, the author based on the calculated basic data to analyze on China's low carbon pilot provinces's CO2 emission characteristics and use Kaya model to decompose the factors influencing the size and driving forces. The results show that Tianjin's type is high. emission and high efficiency, Guangdong's type is low emission and high efficiency, Liaoning's type is high emission and low efficiency, Chongqing's type is moderate emission and moderate efficiency, Hubei's type is moderate emission and low efficiency, Shanxi and Yunnan's type are low emission and low efficiency. The revelation we get from the result is the CO2 strength reduction in various provinces has great potential, accordingly, we put forward different countermeasures for different regions.