Ultrathin internal-heating acupuncture needle and preparation process thereof

The invention provides an internal-heating acupuncture needle and a preparation process of the internal-heating acupuncture needle. According to the internal-heating acupuncture needle and the preparation process, silver is adopted as the main material, a chemical etching process is adopted, a dividing groove and a core material groove are processed in the front of one plate, and an insulating layer is plated in the core material groove through a vapor deposition process; a silver plating layer is plated in the core material groove by adopting a vapor deposition process, so that the core material groove is filled up; a half-round channel is carved in the surface of the silver plating layer at the front of the core material groove by adopting a chemical etching process, platinum is plated in the half-round channel by adopting a vapor deposition process, the platinum plating layer fills up the half-round channel, the front end of the platinum plating layer contacts the plate, the rear end of the platinum platin