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In recent years, with the development of outdoor sports, the events of the casualties always happen. Thus, it is badly in need of a remote monitoring system that can monitor the information of the personnel and vital signs in real time. In this paper, it designs the remote vital signs monitoring system based on Beidou RDSS with the Beidou short message service prompted in current. The monitoring system takes STM32 single-chip as the control core and the vital signs sensor includes the pulse sensor, blood oxygen sensor, skin temperature sensor and three-axis acceleration sensor to collect the data, which can monitor the pulse, skin temperature, oxyhemoglobin saturation and body dynamic coefficient synthetically. The test has proven that the system can accurately test the parameters above, which can meet the design requirements.