The paper introduces characteristics of the ZigBee technology, sets forward the building of the embedded remote medical monitoring system based on ZigBee technology, elaborates on the system functions, structure and realization of key technologies, including wireless positioning, wireless data transmission and design of the vital sign sensor, tests the real-time monitoring effect of vital signs, and points out that the system is conducive to the optimization of the data collection procedure of medical staffs and patients' process of seeking advice from a doctor.