Purpose/Significance To summarize the current development trend of smart healthcare, and to propose the utilization of blockchain technology to establish a new type of infrastructure for a highly available trust system, so as to overcome technical difficulties in the construction of smart healthcare and promote the development of smart healthcare.Method/Process The paper conducts an in-depth analysis on the three major issues faced in the development of smart medical services, namely intelligent digitization, data service-oriented, and collaborative efficiency. It summarizes the relevant work on the application of blockchain technology in medical digitization at home and abroad, analyzes the core role of blockchain technology in the construction of smart medical services from four aspects:privacy security protection, trusted data circulation, construction of de-monopolization applications, and efficient organizational collaboration mechanisms.Result/Conclusion Blockchain technology can promote data sharing security and interoperability, improve the efficiency and transparency of medical services. In the future, the deep integration of smart healthcare and blockchain technology will promote more innovative digital technologies and applications.