The characteristics of Taiwanese postmodern cultural study are shown from the commercialization and universalization of culture and the gradual disappearance of the distance between noble and common public culture. As to the characteristics of Taiwanese postcolonial cultural study, it is obviously discovered that many terminologies such as de-center, de-colonization, subjectivity, and deconstruction, are found in many Taiwanese local discourses. This fact explains that postcolonial thinking is commonly perceived in Taiwanese cultural study. Especially after the declaration of the end of martial law in 80’s Taiwan, many literatures on gays, females, and aborigines, etc., have been generally discussed. This article firstly explored the characteristics of postmodernism and post-colonialism in Taiwanese cultural study. Secondly, it examined the research direction of Taiwanese cultural study from postmodernism and post-colonialism perspectives. Enlightenments of postmodernism and post-colonialism on Taiwanese cultural study were also discussed. Finally, it is claimed that a cross-cultural perspective should be adopted when doing Taiwanese cultural study in the future. Although the current Taiwanese study might be a hybrid of modernism, postmodernism, and post-colonialism, it is argued that we need to lay much stress on the postcolonial perspective, which emphasizes on fluid subjectivity, multiple-selves, and complex identity to solve the crisis of identities and make an effort on pursuing equal cultural relationships in the international world.