The invention discloses an illumination bracelet based on a temperature sensing device. The illumination bracelet based on the temperature sensing device comprises a bracelet belt body and an illumination light plate. The illumination light plate is fixedly installed in the middle of the bracelet belt body in a surrounding mode. The two ends of the bracelet belt body are provided with closing buckles which are mutually matched. The illumination light plate comprises a lamp belt, the temperature sensing device and a control device. The lamp belt is fixedly installed in the middle of the illumination light plate, the temperature sensing device is precisely installed at the end of the lamp belt and connected with the control device, and the control device is connected with the illumination light plate. The bracelet belt body is further provided with a solar electricity storage plate for supplying electricity to the illumination light plate. The solar electricity storage plate is arrangedon the back face of the bracelet belt body and is opposite to the illumination light plate in position, and the solar electricity storage plate is connected with the temperature sensing device and thecontrol device. The temperature sensing device in the bracelet can sense the temperature of the human body, so that work of the illumination bracelet is controlled. The solar electricity storage plate supplies electricity to the illumination light plate through optical energy so that energy is saved, cost is low, and operation is simple and convenient.