Abstract: As an important production space for the knowledge economy and an instrument of science and technology policy, there has been a lack of understanding of the processes and mechanisms behind the changes that have taken place in the strategic planning of technology parks. By introducing the theoretical perspective of discourse coalition and based on a case study, this paper explains the process of changing the strategic planning of PA Aviation Science and Technology Park and reveals the discourse mechanism behind it. This paper has found that strategic plans for technology parks are not instantaneous, as has been generally presupposed by existing research; rather, they are in a complex and dynamic changing, and are subject to mutual negotiation, gaming, and contestation by different actors in the discourse coalition. This paper also reveals the decisive role of intergovernmental relations in framing the discourse and the complementary role of multiple innovative actors in enriching the discursive elements, thus explaining the mechanisms of different actors in advancing the institutionalization of strategic narratives. Lastly, this paper also provides new insights into research on technology parks and the reality of policy practice.