As the intelligent carrier of the next stage of the Internet, wearable devices have begun to enter all aspects of people's lives, especially in the field of medical care, which is in need of overall reform and will be the primary place where wearable devices will work most efficiently. There are ten chapters in Wearable Medical Technologies, which introduces wearable devices, medical status quo in the frontline, wearable medical devices status quo, wearable medical market driving force, wearable medical ecosystem, wearable medical cases, personal wearable health devices, wearable medical business model, the development bottleneck of wearable medical technologies, and wearable medical development prospects. The expression and analysis of these aspects and the interpretation trend from macro to micro help the reader grasp the development of wearable medical devices in the frontline and the front market.