可持續觀光服務為現代最熱門的議題之一，如純由政府部門提供，或私部門提供，均力有未逮，須由公私合作提供，互補互利，達成公部門、私部門與遊客的三贏。本文以2005年鶯歌陶瓷嘉年華（10月7日至23日）為個案探討。分析公私合作的優勢與劣勢，以及改進之道。 本文採用的研究方法為文獻分析法與深度訪談法，訪問鶯歌陶瓷嘉年華六位重要的工作人員。本文的學術價值在：分析公私合作在政府「供給」政策上的涵義、公私合作的優勢與劣勢，以及如何有效提升優勢、減少劣勢。 本文研究發現：公部門在提供可持續觀光服務時，著重文化觀光，而私部門著重產業觀光。兩者並未能密切合作。為達成提供可持續觀光服務，兩者（文化、產業）必須兼顧，並且必須改善交通、環保等問題。本文建議改進方法為公私合作必須加強溝通協調，以及資源共享。

Sustainable tourism service is one of the most important issue. It should be supply with public- private partnerships, not by public sectors or private sector separately, for the three wins of public sectors, private sectors and tourists. This paper discusses the strength and weakness of public- private partnerships to supply sustainable tourism service with a case study of Yingge International Ceramics Festival Case 2005. The method used in this paper is literatures analysis and deep interviews with six key persons who had involved in Yingge International Ceramics Festival. The contribution of this paper is the analysis of strengths and weaks of public- private partnerships, its value, and the effective way to promote its strength and to diminish its weakness. The findings in the case are: (1) public sectors in PPPS highlight on culture value, different from industrial value, emphasized by private sectors. (2) in order to supply sustainable tourism service, both cultural and industrial value should be kept in balance. (3) transportation and environmental protection in Yingge should be improved. The paper also suggests: in order to supply sustainable tourism service, PPPs should strengthen internal communication, coordination and common share of resources.