The smart health and elderly care service model, based on the concept of “healthy aging” and empowered by digital technology，is the main direction of current exploration in the reform of grassroots elderly care services. Whether digital technology can achieve positive reshaping and effective integration in the process of interaction with the structural network，business processes and organizational systems of bureaucratic organizations is the key for digital technology to achieve effective empowerment. H Sub-district is the demonstration model of digital reform in Shanghai, which has empowered its health and elderly care services with multiple digital technologies. Through exploration of paths such as data platform support，data sharing，business process reengineering, service resource aggregation，and institutional mechanism guarantee，H Sub-district promoted the in-depth integration of governance demands，governance structures, governance businesses，governance resources and governance systems in the process of providing health and elderly care services within the region，realized organic integration of digital technology and grassroots government，and achieved the effective empowerment of public service supply by digital technology，which is a typical example of the current grassroots government's exploration of digital technology empowering community health and elderly care services. The governance experience of H Sub-district provides useful practical references and pioneering examples for the reform of elderly care service supply in grassroots governance in China.