Aiming at the current state of environmental pollution in Wu'an,this paper mainly focuses on the study of economical laws and means to solve environmental problems.The author puts forward to establish and improve the environmental policies,laws and regulations in accordance with the market economy,strengthen the use of economic means so as to realize a comprehensive environment improvement and force the pollution sources to treat environmental pollution themselves in order to improve Wu'an's environment.Therefore,doing research on pollution-discharge right trade in Wu'an is of profound theoretical and practical significance.