The "Healthy China 2030" Plan clearly calls for building an integrated healthcare delivery system, which in turn provides the policy justification and institutional space for applying integrated care theory to maternal and child health and for exploring new service models..Existing service systems tend to focus on the reform of large-scale ministerial structures and the coordination of service processes; however, they still lack the support required to integrate healthcare services in order to achieve deeper levels of ‘functional integration’ and the ‘convergence of clinical and preventive care’. This paper employs a normative theoretical framework, drawing on the theory of integrated healthcare, to explore the construction of a framework for an integrated, full-life-cycle health service system suitable for maternal and child health institutions, based on comprehensive policy guidance, literature review and lessons learnt from exemplary practices. This framework clarifies the logical hierarchical relationship between ‘whole-life-cycle health management’ and ‘services covering the entire reproductive process’, and proposes ‘Health Management Centres’ and ‘Disease Management Centres’ as the two functional pillars, endowing them with responsibilities for both cross-departmental administrative coordination and operational management, with the aim of resolving the ‘integration failure’ that exists between the ‘three major operational departments’. This paper further elaborates on the theoretical logic and operational mechanisms of this framework, and discusses its theoretical contributions and practical implications, with the aim of providing a new analytical framework to guide the transition of operational integration within China’s maternal and child health care institutions from ‘formal integration’ to ‘substantive integration’.