A heartbeat detecting bracelet includes a base body, a sensor, a processing module and a band-like body. The base body is equipped with a first electrode slice located in an inner surface of the base body for being attached to the skin of the human body, and a second electrode slice located in any one surface of the base body except the inner surface for being touched in use. The sensor is disposed to the base body and capable of being touched or approached during the second electrode slice is touched. The processing module is disposed in the base body and coupled with the first electrode slice, the second electrode slice and the sensor for powering on or off the heartbeat detecting bracelet according to signals from the sensor. The band-like body is combined with the base body for wearing the heartbeat detecting bracelet to the human body.
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