The study mainly aims to explore and compare the cultural value orientations of Southeast Asian countries with concrete index of variable factors, and ultimately seeks for directions for Korea better role as a leading country in Southeast Asian economic region. The research limits the scope of the study only to three countries of the Philippines, Indonesia and Thailand. It is due to the significant differences of geography, language, and above all unique religion in Southeast Asia region, The Philippines, Indonesia and Thailand are very much similar in many aspects of diverse ethnicity, diverse religion, especially in the aspect of culture. However, it is no doubt, among countries surveyed, that the research show the differences in continuum level in terms of value orientations. Generally it might be due to the history, religion and language differences.