The Clean Development Mechanism (CDM) is an emerging initiative that promotes access by developing countries to additional funding and environmentally friendly technologies from developed countries to protect climate and the environment. As an arduous task, prevention and control of environmental pollutionhas always been attached great importance to because of its complexity and long-
term nature. This paper aims to understand the relationship between CDM and environmental pollution prevention and control, further promote the knowledgeof CDM, promote relevant departments, enterprises and projects in the field of environmental pollution prevention and control to fully pay attention to and make use of CDM, promote the development of environmental pollution prevention and control, and contribute to energy conservation and emission reduction.