The advancement of information technology has heralded the age of platformization,granting diverse stakeholders the ability to influence the digital journalism landscape through their practical involvements.This paper,grounded in the institutional logic perspective and employing the instrumental case of the Hu Xinyu missing person incident,reveals a threefold institutional logic driving the construction of digital news formats within platform content production.Firstly,participants in events contribute their perspectives,infused with values and beliefs,as news content to digital platforms through their testimonials.Guided by the logic of click-driven priorities,these contributions significantly impact the prevailing content disseminated by digital platforms.Secondly,digital platforms curate specific cultural symbolic representations of content through community interactions,thereby shaping the discourse form of media coverage via relational logic.Lastly,digital media,by integrating these cultural symbols into reporting practices,endows the emerging news formats with professional legitimacy from a professional logic standpoint.The formation of digital news formats unfolds within the interplay of multiple institutional logics.This study has primarily focused on the dominant institutional logic at each stage.Future research could delve deeper into exploring the interrelationships among various institutional logics and other pertinent issues.