The greenhouse gas（GHG）emission reduction of power industry，which is the largest GHG emission industry of China，is of great concern to the direction of energy development，emission reduction international commitments and many other issues.By presenting a list of technologies for reducing GHG emissions of China's power industry，this paper systematically proposes potential emission reduction research methods based on the technical characteristics，technical route，resource endowments，constraining conditions and reduction cost of the main generation technology.With an eye to the development of China's future power industry scenarios，this paper has the potential GHG reduction capacity of the power generation industry for a period of time in future measured and calculated to give appropriate emission reduction scenarios suitable for the current stage of economic and social development of China.