Abstract: In the face of the ever-increasing challenge imposed by the requirement of environmental protection, a series of effective measures as follows are adopted by Matou Coal Preparation Plant in a bid to turn the plant into a green one: addition of the system for reuse of treated wastewater; use of the treated wastewater from Matouchengzhen Wastewater Treatment Plant as coal washwater; addition of a separate wastewater treatment system for centralized treatment of domestic sewage from plant area; addition of separate rain water and wastewater collection systems for maintaining equilibrium of washwater through rational use of first rainwater; adoption of more effective dust control measures with the use of bag collectors working under negative pressure, and discharge of dust in dust-concentrated areas in an organized manner. Adoption of the above-going measures has obtained tangible environmental protection result, bringing about favorable social and economic benefits for the plant.