The influence on the supply chain integration is analyzed from industrial cluster environment at first, and the factors of the supply chain integrated development are sorted and summarized, including degree of information integration, capability for market rapid-response, cooperative synergy, process integration and the ability of innovation resources conformity. Then measure steps for integration degree are given based on the fuzzy integral method, providing a quantitative analysis method for evaluating the integration of supply chain from industrial cluster environment. China is accelerating the process of integration into the global economic system in the background of industrial globalization and integration into the world economy. Different countries, regions and enterprises are looking for their breakthrough point to establish their own strategic position, making themselves embed into cooperated network relationship according to their respective resource endowment, production, technology and market, etc in the global value chain. The market competition is no longer at an enterprise-level, but at the supply chains-level (1). The index that reflects the close relationship level between the core enterprise and other cooperative enterprise is Supply Chain Integration Industrial clusters, as one spatial industry organization based on specialization and networking, provide a high-quality of "eco-environment" to supply chain integrated development, and basically play a positive role in the healthy development of supply chain integration. Supply chain integrated development has become the end- result for many enterprises in industrial clusters environment, because it integrated specialization, integration of core competence based on comparative advantage and large-scale operating characteristics in the way of network organization (2). Integrated organization development trend showed that high level of integration is inevitable direction of the integrated development. The higher the degree of integration, the greater the value of supply chain, the stronger of the radiated driving force in regional economy. So it is necessary to evaluate and measure the degree of integration in order that the core enterprises can know the situation of integration for supply chain. It can make better use of resources provided by industry cluster environment and improve the overall competitiveness of the supply chain so as to enhance regional strategic position. Although some literatures have concerned about the description and evaluation of the supply chain integration, the evaluation studies placed under the industrial cluster environment are not so many. It is not comprehensive for two questions. One is the environment in that industrial clusters provided to the development of supply chain integration, the other is quantitative evaluation studies on influential factors of supply chain integration in industrial cluster environment. In view of above, this paper analyses a sound developing environment which provides to the supply chain from the perspective of industrial cluster, gives factors that influence on supply chain integrated development. Based on the Fuzzy Integral Method, evaluation model is built. The paper will provide theoretical foundation to the government in formulating industrial policy and the corporate in making decision investment as reference.