The deep integration of information technologies and healthcare has become a prevailing trend. Digital healthcare, with its prominent advantages in optimizing the supply-demand matching of medical resources and enhancing the accessibility of health services, has emerged as a core driving force in the transformation of the healthcare service system. This study reviews the current development status and trends of digital healthcare in China, covering areas such as smart hospitals, proactive health, and public health. It identifies key challenges from the aspects of standardized data governance (involving data quality assurance and privacy protection in acquisition, as well as foundational computational power and analytical capabilities for data utilization), equitable access to digital and intelligent health services (involving fair availability and on-demand provision, reliable decision-making with trustworthy processes, and dynamic responsiveness with iterative evolution), and coordinated allocation of healthcare resources (involving effective intra- and inter-hospital collaboration and sharing mechanisms, as well as resource interoperability and process linkage for online/offline integration). To address these challenges, we propose (1) establishing a unified governance system for healthcare data and integrating cross-domain healthcare data under the Internet of Healthcare Systems (IHS) environment; (2) adopting equalization safeguarding strategies for healthcare services and developing secure and trustworthy foundational models for digital and intelligent healthcare; and (3) constructing coordinated mechanisms for healthcare resource allocation to connect multi-stakeholder resources across the entire healthcare service process. These measures aim to promote the compliant and efficient development of data, ensure equitable access to digital and intelligent services of smart healthcare, and achieve a balanced distribution of high-quality healthcare resources.