An atomizer , comprising: a housing , which is provided with a liquid storage chamber configured for storing an e-liquid; a liquid guide element , which is disposed in the housing , wherein the liquid guide element has an atomization surface , the liquid guide element is configured for absorbing some e-liquid in the liquid storage chamber and is capable of transferring the e-liquid to the atomization surface ; and a radiating light source , which has at least one radiation generating surface , wherein the atomization surface faces the radiating light source and the radiating light source is arranged spaced from the atomization surface by a set distance to form an atomization area , the radiation generating surface has provided thereon a far-infrared radiating component , and the far-infrared radiating component is configured for emitting far infrared light which at least partly radiates onto the atomization surface , so as to heat the e-liquid near the atomization surface to generate an aerosol; characterized in that the radiating light source comprises a substrate capable of being transmitted by far infrared light, the substrate is arranged spaced from the liquid guide element , the radiation generating surface is one surface of the substrate away from the atomization surface , the far-infrared radiating component is a far-infrared coating applied on the radiation generating surface ; the far infrared light emitted by the far-infrared coating when being electrified passes through the substrate and the atomization area for heating the e-liquid near the atomization surface to generate an aerosol. a housing , which is provided with a liquid storage chamber configured for storing an e-liquid; a liquid guide element , which is disposed in the housing , wherein the liquid guide element has an atomization surface , the liquid guide element is configured for absorbing some e-liquid in the liquid storage chamber and is capable of transferring the e-liquid to the atomization surface ; and a radiating light source , which has at least one radiation generating surface , wherein the atomization surface faces the radiating light source and the radiating light source is arranged spaced from the atomization surface by a set distance to form an atomization area , the radiation generating surface has provided thereon a far-infrared radiating component , and the far-infrared radiating component is configured for emitting far infrared light which at least partly radiates onto the atomization surface , so as to heat the e-liquid near the atomization surface to generate an aerosol; characterized in that the radiating light source comprises a substrate capable of being transmitted by far infrared light, the substrate is arranged spaced from the liquid guide element , the radiation generating surface is one surface of the substrate away from the atomization surface , the far-infrared radiating component is a far-infrared coating applied on the radiation generating surface ; the far infrared light emitted by the far-infrared coating when being electrified passes through the substrate and the atomization area for heating the e-liquid near the atomization surface to generate an aerosol. <EOS>