The 18th session of the Medical Engineering College’s ideological and political micro-course is now online, themed “IoT and the New Four Great Inventions,” analyzing the core empowering logic of IoT technology on the New Four Great Inventions. In the high-speed rail sector, relying on IoT sensing and data transmission technology, real-time monitoring of train conditions, track status, and operation trajectories ensures precise scheduling for safe and efficient travel; shared bicycles utilize IoT positioning and supply-demand perception modules to achieve accurate vehicle deployment and intelligent operation, optimizing urban short-distance travel micro-circulation; online shopping and Alipay leverage IoT data interconnectivity and encrypted transmission technology to streamline the entire transaction chain, enhancing payment security and consumer convenience. The course focuses on the integration of medical and engineering fields, where IoT connects medical terminals and health data, enabling real-time collection of vital signs, collaborative device interaction, supporting remote consultations, emergency warnings, and efficient allocation of medical resources, promoting the improvement of medical service quality and balanced resource distribution. It guides teachers and students to deepen medical-engineering collaboration through technological innovation, practicing the mission of benefiting the public with technology, and demonstrating the professional responsibility of technology empowering industry upgrades and social development.