In order to reduce effectively the threat of climate change on the sustainable development of human society,possitive and effective control of carbon dioxide emissions is urgently needed. The proposed theory and development of emissions trading provide possibility of solving climate change by a cost effective way. Based on the further study about emission trading and the contrast method of initial emissions permits allocation,combined with the development of domestic emissions trading market at present and the development of carbon financial markets,the results put forward the proposal for building a mature domestic emissions trading market.