The invention provides an acupuncture device capable of automatically heating, which comprises an acupuncture needle and a heater; electric wires are installed on the back part of the heater, and a plug is connected at the end heads of the electric wires; a transformer is installed in the heater, a switch is installed on the heater, and a metal stretching end is arranged on the heater; the acupuncture needle is composed of a needle head and a needle handle wrapped with controllable temperature heating ceramic; a connecting wire is arranged on the top part of the needle handle wrapped with controllable temperature heating ceramic, and an electric clipper capable of clamping the metal stretching end is arranged on the connecting wire. The acupuncture device designed in the invention is heated by the heating ceramic to reach a temperature and is maintained at a constant temperature without being raised to heat the needle, thus the heating time can be set according to the demand of the patient under the constant temperature in the moderate temperature acupuncture process, so that the acupuncture effect is better, and the acupuncture effect is more remarkable.