The purpose of this study is to reveal the reason for the diffusion of Airports Health Accreditation among airports. Institutional logic and legitimacy literature are used in the research. The research area consists of 56 airports from different parts of the world. In the research, a qualitative research method was used. Document analysis was used as a data collection method, and descriptive content analysis was used as a data analysis method. According to the results of the research, there are two basic logic and legitimacy seeking that lead airport to this certificate. The first of these is moral legitimacy and professional logic. Accordingly, airports want to be seen as legitimate by professional actors in their institutional environment by certifying that they have taken the necessary measures against COVID-19 threats. The second is pragmatic legitimacy and market logic. According to this remarkable result of the research, one of the important reasons for the airports to turn to this accreditation is to meet the expectations of the customers and gain legitimacy in their eyes. Airports use this accreditation to rebuild trust in the eyes of customers and passengers, to create an airport reputation that took the necessary measures during the pandemic period, to be preferred again, and to revitalize airports.

本研究的目的是揭示机场健康认证在机场之间扩散的原因。研究中使用了制度逻辑和合法性文献。研究区域包括来自世界不同地区的 56 个机场。在研究中，采用了定性研究方法。使用文档分析作为数据收集方法，使用描述性内容分析作为数据分析方法。根据研究结果，导致机场获得该证书的基本逻辑和合法性寻求有两个。首先是道德合法性和职业逻辑。因此，机场希望证明他们已采取必要措施应对 COVID-19 威胁，从而在其制度环境中被专业行为者视为合法。二是务实合法性和市场逻辑。根据这一显着的研究结果，机场转向此认证的重要原因之一是为了满足客户的期望并在他们眼中获得合法性。机场利用这一认证重建客户和乘客心目中的信任，创造在大流行期间采取必要措施的机场声誉，再次成为首选，并振兴机场。