BACKGROUND:
Aligned with China's national strategy shifting from treatment-centered to people's health-centered care, current healthcare systems face challenges in providing integrated, continuous, and community-based health management. This study aims to construct and preliminarily assess an innovative "Five Gs" life-course health management model.

METHODS:
We developed the "Five Gs" model, which corresponds to five core dimensions: General (whole-person care), Group (multidisciplinary team), Gamut (full spectrum of life course), Generational (family-oriented), and Grassroots (community-embedded). This framework was operationalized within the health management center of a major urban hospital. A mixed-methods approach was used, combining model design, stakeholder workshops, and a pilot implementation involving 5000 participants. Process indicators and pre-post self-reported health literacy surveys were analyzed.

RESULTS:
The pilot demonstrated the model's feasibility and acceptability. The integrated "Five Gs" approach improved care coordination across different service points. Preliminary data showed a significant increase in participants' health literacy scores (p<0.01) and enhanced satisfaction with preventive and continuous care services. The model facilitated stronger linkages between clinical health management, family support, and community resources.

CONCLUSIONS:
The "Five Gs" (General, Group, Gamut, Generational, Grassroots) life-course health management model presents a viable and innovative framework for advancing integrated people-centered health services. It translates policy directives into a structured operational strategy, showing potential to strengthen health promotion and the primary healthcare system. Further large-scale evaluation is recommended to assess its long-term impact on health outcomes and system efficiency.