A partial equilibrium model for global carbon emission trading (TRCW) was set up to analyze the market potential and the market structure of clean development mechanism (CDM) put into effect in China. The model combined with the stipulation of related international agreement; the actual factors including America's rejection, carbon sink project, hot air scope, transaction cost, adaptation fund and monopolistic supply were considered. Under the Marrackech Accords, the CDM market scope in China reduced greatly, only about 61 MtC/a, with profits of about 150 M$/a, in which the heavy industry and ...