The present invention relates to a far-infrared irradiator for highly irradiating far-infrared rays, and a far-infrared coating method of a lamp of the irradiator. More particularly, the present invention provides a far-infrared irradiator for highly irradiating far-infrared rays and a far-infrared coating method of a lamp of the irradiator, wherein the method comprises: incinerating foreign materials by burning a surface of an infrared lamp to be coated at a temperature of 350 to 400°；C； sanding to pre-treat the surface of the infrared lamp after the incineration of the foreign materials； placing the infrared lamp into a vacuum chamber after sanding, and injecting mixed gas containing argon and nitrogen thereinto at a temperature of 400 to 450°；C, so as to coat a porous TiO_2 nanoparticle thin film having a diameter of 10 to 20 &mu；m with plasma and fire the same； applying a mixture of titanium and nano-diamond tourmanium onto the surface of the infrared lamp, followed by firing and drying； heat-treating mixed powder containing iron oxide, silicon oxide, magnesium oxide, and aluminum oxide at 1,300 to 1,400°；C for one hour, followed by quenching, then coating the resulting powder having an average particle size of 0.5 &mu；m onto the surface of the infrared lamp with a thickness of 30 to 40 &mu；m, and then heat-treating the same at a temperature of 150 to 200°；C for one hour or more. The present invention can apply a ceramic coating prepared with mixed powder of oxides onto the infrared lamp, thereby providing a higher level of emissions of far-infrared radiant energy compared to an existing far-infrared irradiator product, increasing thermal efficiency through a case cover having a honey-comb structure, and irradiating far-infrared rays through uniform heat transfer.COPYRIGHT KIPO 2020본 발명은 원적외선을 고방사하는 원적외선 조사기 및 조사기 램프의 원적외선 코팅 방법에 관한 것으로서, 더욱 상세하게는 코팅 대상인 적외선램프의 표면을 350℃ 내지 400℃의 온도에서 연소시켜 이물질을 소각하는 단계；와 이물질 소각 후 상기 적외선램프의 표면을 전처리하기 위해 샌딩하는 단계；와 샌딩 후
