The development of hi-tech industrial park is very important at the present stage. Taiwan has much experience to use the industrial policy to predominate the hi-tech industry. It is necessary to evaluate the influence of these policies by an objective method to know their effect. How to evaluate the environmental capital value is an important issue for the industrial development. In this study, the concept of environmental capital is derived to analyze the policy effect to an industrial park. The index is used to calculate the value of the influence of each task. The results show that the market value, the location value, the multiple usage value, and the health and ecological value are the four most important articles in the results.