Abstract:In the case of resource constraints, environmental degradation and that is growing to threat the human health, the realization of the transformation of production mode is imminent. Ecological industry chain is a kind of mode which could achieve multi-level utilization of resource of production and development, so it’s worth studying its composition and operation mechanism. This paper introduces the theory of push and pull to the analysis of the forming process of ecological industry chain. First, to find out the influence of the development of the ecological industry chain, "push", "pull" and "middle obstacle factors". Then analyze the mechanism of the dynamic factors in detail. Finally build ecological industrial chain formation mechanism model from the production possibility frontier, economic interests, the cost of production, to summarize the real power of the ecological industry chain’s appearance, in order to provide practical guidance and theoretical basis for the scientific planning and designing of ecological industry chain.