With the realization of small size, high sensitivity and intelligence of medical and rehabilitation equipment, wearable medical equipment has become popular. Wearable medical devices can reflect the physiological data of the human body to people's mobile devices through sensors, provide users with data, and enable users to monitor their physical health in real time. With the application of new generation information technologies such as the Internet of Things, cloud computing and mobile Internet in the medical field, the number and types of electronic devices continue to increase, and the frequency bands of electromagnetic waves in space continue to expand, which have special requirements for heat conduction, shielding, grounding, and filtering.