A hypertension therapy instrument comprises an infrared ray generator that can radiate infrared ray onto a human body a heart rhythm signal generator sensing heart rhythm of the human body and outputs a heart rhythm signal containing heart rhythm information a controlling device receiving the signal outputted by the heart rhythm signal generator and controlling a radiation intensity of the infrared ray generator based on the heart rhythm of the human body, so that the radiation intensity of the infrared ray generator changes with the heart rhythm of the human body, so as to treat hypertension and a power supply supplying power to the infrared ray generator, the heart rhythm generator, and the controlling device.