This study examines the digitalization of Islamic education marketing through the principal's strategy in digital platform-based marketing management at MI Nurul Ulum Bilingual School Grabagan Sidoarjo. The research aims to analyze strategy the implementation of POAC management functions (Planning, Organizing, Actuating, Controlling), the application of the Product,, Price, Place, Promotion, People, Process, dan Physical evidence (7P) marketing mix theory, and the obstacles and solutions faced by the school principal. This study employs a qualitative approach using a case study method. Data were collected through in-depth interviews, observation, and documentation, analyzed using Miles, Huberman, and Saldana's interactive model. The findings reveal: (1) Digital platform-based education marketing has been structured through collaborative POAC functions; (2) The principal's strategy encompasses an integrated 7P marketing mix, including bilingual and tahfidz flagship programs, transparent pricing, information distribution via website and social media, and strengthened human resources and physical evidence; (3) Key challenges including limited digital HR, community perceptions, and digital infrastructure were addressed through adaptive and gradual strategies. This research affirms the strategic role of the madrasah principal as an effective agent of Islamic education marketing digitalization. Based on the research findings, madrasas are advised to strengthen their digital human resource capacity, consistently optimize social media and website management, and conduct regular evaluations of the effectiveness of digital marketing strategies