the environmental management is a prominent problem of Beijing’s current development. Besides Beijing’s inherent contradictions as a megacity，the giant amount of waste emissions，insufficient uses of recycling resources，lack of industry chain for waste material recycling，over-exploitation and misuse of natural resources are the important reasons for Beijing’s difficult situation in environmental problems. The core content of 3R Principles in the recycling economy，however，provides exactly the solutions for the problems mentioned above. The study，from three levels including the strategy，system mechanism and specific implementation，tries to explore the relevant routines and strategies，about what those two aspects can assist the improvement of the environmental difficult situation in Beijing.