The invention discloses a
heart rate detecting device which comprises a finger clamp, a
signal collecting amplification circuit, a single-
chip microcomputer, a WIFI module and APP installed on an intelligent device. The finger clamp is connected with a display screen. A battery is installed in the finger clamp and electrically connected with the
signal collecting amplification circuit, the single-
chip microcomputer and the WIFI module. The output end of the
signal collecting amplification circuit is connected with an external interrupt port of the single-
chip microcomputer. The output end of the single-chip microcomputer is electrically connected with the WIFI module and the display screen. The single-chip microcomputer is in
wireless communicating connection with the intelligent device through the WIFI module. The intelligent APP obtains
heart rate information through the WIFI module. A patient can use the device for detecting the
heart rate every day, obtained heart rate data is stored in the intelligent device through the intelligent APP, when it is necessary, the patient directly transmits the heart rate data to a hospital from the intelligent APP, a doctor analyzes the heart rate of the patient within a certain period of time according to the heart rate data, some diseases can be observed easily for a long term, the patient does not need to be hospitalized to be monitored, and labor is saved.