This paper is focused on a preservation project- 「Shi-shi south village」 , a village which is the earliest built and located at the central financial district in Taipei, Taiwan. Through the discussion of the practice on the project, I want to define a new approach to the recent spatial development of Taipei city as a "postcolonial" development and to argue that the process of building the "postcolonial" cityscape of Taipei is through a citizen participation process, which I reconstruct it as many political, ethnical and cultural forces mediated. The paper contains three parts. The first part is talking about the context of the project, the transition of political power in Taiwan and the following social, cultural and ideological transformation in the postcolonial era of Taiwan. Second, using the Shi-shi preservation project as an example exploring the major themes that being a barrier of a preservation project and demonstrating a participation process interfered by many political, social, cultural and ideological forces. Finally, organizing the Shi-shi project and the related cases, such as Sung-Hsen Cigarette Factory(松山菸廠) and Chian Kai-Shek's Former Residence(蔣宋故居) to build up a meaningful framework to understand the major forces that shaping the postcolonial cityscape of Taipei. The contributions of this paper will be the following: (a)defining a meaningful framework named "postcolonial cityscape" to explain the recent spatial development of Taipei. (b) clarifying the major themes and its political, social, cultural and ideological contexts that being a barrier in the practice of participation process of preservation project in the public domain. (c) suggesting some methodological thinking to the professional practice on urban heritage or physical form of cityscape in the postcolonial era of Taiwan.