The present invention relates to a method for manufacturing a medical heating device, which comprises: an injecting step of injecting an injected workpiece in which an appearance body, a temperature controlling case of a temperature controlling device on the outside of one side of the appearance body, and a wireless communicating case of a beacon on the outside of the other side of the appearance body are integrated by using a common injecting device and ABS resin； an insulating step of attaching an attic insulator to the inner surface of the injected appearance body, and performing insulation； a first attaching step of attaching an aluminum panel on one side of a planar heating body in order to minimize heat transmission to the attic insulator and perform uniformity of heat； a second attaching step of attaching the planar heating body to the inside of the appearance body by using an adhesive fabric after bonding a surface, to which the aluminum panel is attached, to the attic insulator； a third attaching step of applying silicon along a gap and attaching an L-shaped bar to the gap in order to block the gap between the planar heating body and the appearance body when the step of attaching the planar heating body is completed； and an assembling step of mounting the temperature controlling device on the temperature controlling case which is integrally injected on the outside of the one side of the appearance body, and mounting the beacon in the wireless communicating case which is integrally injected on the outside of the other side of the appearance body. The present invention can maximize a heating effect.본 발명은 의료용 온열기의 제조방법에 관한 것으로, 통상의 사출기 및 ABS수지의 이용으로 상기 외관본체와 상기 외관본체의 일측 외측면상에 온도조절기의 온도조절케이스 및 상기 외관본체의 타측 외측면상에 비콘의 무선통신케이스가 각각 일체된 사출가공물이 사출되는 사출단계, 사출된 상기 외관본체의 내측면상에 아티론 단열재를 부착하여 단열처리하는 단열단계, 상기 아티론 단열재 측으로의 열 전달을 최소화하고 발열의 균일화가 이루어지도록 상기 면상발열체의 일측면상에 알루미늄 판넬을 부착하는 제1 부착단계, 상기 알루미늄 판넬이 부착된 면을 상기 아티론 단열재에 접하도록 한 다음 접착천을 이용하여 상기 면상발열체를 상기 외관본체 내측에 부착하는 제2 부착단계,
