Pneumatic tire comprising sealant layer and sound absorbing material layer

The present invention relates to a pneumatic tire comprising a sealant layer and a sound-absorbing material layer, comprising: a sound-absorbing material layer positioned on the inner surface of the tire; and the sealant layer is positioned between the tire inner side surface and the sound absorbing material layer and is coated on the tire inner side surface. The sound-absorbing material layer includes a first porous material having closed cells and a second porous material having open cells, and can be self-sealed when a flat tire occurs by the sealant layer coated on the inner side surface of the tire, and can have a performance of reducing resonance sound by including the sound-absorbing material, even if a nail penetrates through the tire and the sealant to reach the sound-absorbing material, the nail can be prevented from being damaged by the nail. And the phenomenon that tiny fragments of the sound absorbing material reduce the function of the sealant can be prevented, and the noise reduction performanc