The goal of developing leisure farm is not only to protect the agriculture resource, and to expand local economy. To achieve the goal of leisure ranch, the farm has to enhance higher service quality and customer satisfaction. Therefore, it is important to develop a modified evaluation index of service quality for leisure ranch in Taiwan. This study applies Delphi method to define the index implied in leisure ranch service quality. And it corresponds the analytic hierarchy process (AHP) method with experts' evaluation to examine consistency of judgment. Consequently, the research develops a leisure ranch service quality index system in Taiwan. The result shows that ”experience attraction” and ”ranch field management” are the most significant factors.