The invention discloses a Bluetooth-based data transmission method between an intelligent terminal and medical wearable equipment. The medical wearable equipment comprises a processing module, a temporary storage module, a Bluetooth module and a variety of sensors. Each sensor sends data to the processing module through a serial port. The reading and writing operation of the temporary storage module is controlled by the processing module. After that, the data transmission between the temporary storage module and the intelligent terminal is realized through the Bluetooth module. According to the technical scheme of the invention, through the methods of data temporary storage, two-way timestamp, data retransmission and the like, when the distance between the intelligent terminal and the medical wearable equipment temporarily exceeds a Bluetooth transmission range and then gets back into the range, physiological signal data can be reliably transmitted between the intelligent terminal and medical wearable equipment. When the distance between the intelligent terminal and a patient (medical wearable equipment) temporarily exceeds the Bluetooth transmission range and then gets back into the range, the requirements of physiological signal data transmission can be met.