["Family Relations, EarlyView. ", "\nABSTRACT\n\nObjective\nThis study employs a grounded theory approach to explore the experience of family estrangement among adult children of China's Gen Z, aiming to uncover its underlying mechanisms and dynamic characteristics.\n\n\nBackground\nDespite its increasing prevalence, family estrangement remains insufficiently theorized and measured, particularly among China's Gen Z, whose distinct experiences call for culturally sensitive frameworks and tools.\n\n\nMethod\nUsing questionnaire screening, 60 Gen Z participants from different Chinese areas were selected for in‐depth interviews designed to explore the causes and manifestations of family estrangement.\n\n\nResults\nAnalysis identified six key dimensions of estrangement: (a) communication quality, (b) communication frequency, (c) physical and psychological distance, (d) negative events, (e) role reciprocity, and (f) support from other family members. On the basis of these findings, the study proposes a conceptual framework to assess the severity of estrangement.\n\n\nConclusion\nThe findings suggest that family estrangement among China's Gen Z adult children is not a monolithic or linear phenomenon but rather a complex construct characterized by internal contradictions and multiple facets.\n\n\nImplications\nThis study contributes theoretical foundation for enhancing the understanding of family estrangement among Gen Z adult children. It also offers a multidimensional structure for assessing estrangement, thereby providing evidence‐based support for interventions aimed at fostering healthier and more positive family relationships.\n\n"]