Abstract: Based on the Reduce， Reuse and Recycle (“3R” for short) Principle， this study established an evaluation system for eco-industrial parks including 18 evaluation indexes. The AHP (Analytic Hierarchy Process) analysis was given involving experts evaluation to establish the comparison and judgment matrix， and the weight of each index was acquired through the consistency test. The findings indicated that the Reduce is the precondition for realizing “3R” circular economy of eco-industrial parks. That is， smaller input may lead to more profit， and the sustainable development could be achieved by consuming fewer resources so as to build up an eco-friendly environment and coordinate the development of economy， environment and society.

Key words: eco-industrial park, “3R” principle, environmental evaluation, index system