According to the health needs of computer users and gamers, design a kind of heart rate monitoring patch which is compact and light, which can be attached to the side of the mouse and other plane, and can also be applied to the skin of the human arm. The photoelectric sensor is used to irradiate the thumb to collect the heart rate, and the user’s heart rate value is obtained by analyzing and measuring the signal through the low power consumption small package Bluetooth chip with a builtin controller. Through Bluetooth 4.0 and mobile communication heart rate values are transmitted to the app or PC terminal realtime display, and with an alarming function of heart rate. Achieve the ultra low power and volume minimization integration scheme for heart rate monitoring. The heart rate patch is applied to the thumb side of the mouse, realize the upgrading of the existing intelligent mouse.