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With the emerging global ecological environment crisis, petrochemical enterprise operation and its supply chain should set up a win-win target of both environment protection and economic benefit realization, which means, a higher ecological-economic efficiency. This paper establishes the E2-efficiency quantitative model for petrochemical enterprise based on the theory of intuitionistic fuzzy set, and conducts intuitionistic fuzzy measurement of petrochemical enterprise E2-efficiency, in order to be beneficial to the achievement of the win-win target for petrochemical enterprise on environment protection and economic benefit improvement.