The digital era has change method communicate And interact family multicultural in Indonesia so as to create challenge new in build effective interpersonal communication. On that basis, the research This aim to develop an adaptive interpersonal communication model For multicultural families. By conducting an analysis literature through approach content thematic through the stages of coding, categorization, synthesis findings, and development framework theoretical to various publication scientific 2021-2025 period which discusses family interpersonal communication, communication multicultural, and adaptation digital technology, this qualitative research based on literature studies identifies that the challenges main interpersonal communication of multicultural families in the digital era includes gap digital literacy, preservation mark culture, complexity interpretation meaning, and management platform communication. Family multicultural develop strategy adaptation structural, functional, and relational For overcome challenge those factors. success adaptation covers digital literacy, quality connection family, accessibility technology, the presence of digital mentors, and capability organizational. The Adaptive Interpersonal Communication Model (ADAC) was developed with four component integrated: Assessment, Adaptation, Application, and Evaluation. This model provide framework systematic For help family multicultural build communication harmonious with integrate digital technology and diversity of values culture in the multicultural context of Indonesia.