This paper reviewed systematically practices and progresses of international and domestic emission trading policy in China during the past two decades, and concluded that emission trading is broadly used in the air pollutants reduction in USA, and the global carbon reduction with better effects, the emission trading policy exploration in China could be roughly divided into three stages: Initial Development stage (1988-2000), Piloting exploration stage (2001-2006), Deepening Piloting stage (2007-). Also, nine characteristics of the current emission trading practice in China were concluded and six key issues influencing the advancement of emission trading piloting were identified and discussed. And lastly, the paper proposed the pilot roadmap for implementation of the emission trading, and pointed out that efforts in the near future should focus on the construction of “six systems”, that are key technical supporting system, fair and reasonable allocation system of the emission permit, emission trading market system, laws and regulations system, pollution source monitoring and management system, and law enforcement and supervision system.
