An atomizing device, comprising: a main body defining an air inlet and an air passage, the air inlet being in communication with the air passage; an air pipe in the main body; a mouthpiece arranged at an end of the main body, the mouthpiece defining an air outlet, the air outlet being in communication with the air passage; a liquid chamber in the main body, the liquid chamber surrounding the air passage and being configured for storing tobacco liquid; at least one heating element arranged in the air passage, the at least one heating element being configured for heating the tobacco liquid to form aerosol; and a permeating component having a heat absorbing surface, the at least one heating element being in contact with the heat absorbing surface, the permeating component being configured for guiding the tobacco liquid to the heat absorbing surface for atomization; wherein the air pipe and the permeating component cooperatively define the air passage; characterized in that the at least one heating element is stripe-shaped and is attached to the heat absorbing surface, or the at least one heating element comprises a heating layer printed on the heat absorbing surface; and wherein: the permeating component is substantially annular, the permeating component including an interior wall and an exterior wall, the exterior wall in contact with the tobacco liquid in the liquid chamber, and the interior wall serving as the heat absorbing surface; or the permeating component is substantially cylindrical and defines a plurality of air holes oriented along a direction parallel to an axial direction thereof, each air hole comprising an interior wall functioning as the heat absorbing surface and an exterior wall being in contact with the tobacco liquid in the liquid chamber; or the permeating component is substantially annular, the permeating component comprising an interior wall and an exterior wall, the exterior wall serving as the heat absorbing surface, the at least one heating element attached to the exterior wall, and the interior wall in contact with the tobacco liquid in the liquid chamber. a main body defining an air inlet and an air passage, the air inlet being in communication with the air passage; an air pipe in the main body; a mouthpiece arranged at an end of the main body, the mouthpiece defining an air outlet, the air outlet being in communication with the air passage; a liquid chamber in the main body, the liquid chamber surrounding the air passage and being configured for storing tobacco liquid; at least one heating element arranged in the air passage, the at least one heating element being configured for heating the tobacco liquid to form aerosol; and a permeating component having a heat absorbing surface, the at least one heating element being in contact with the heat absorbing surface, the permeating component being configured for guiding the tobacco liquid to the heat absorbing surface for atomization; wherein the air pipe and the permeating component cooperatively define the air passage; characterized in that the at least one heating element is stripe-shaped and is attached to the heat absorbing surface, or the at least one heating element comprises a heating layer printed on the heat absorbing surface; and wherein: the permeating component is substantially annular, the permeating component including an interior wall and an exterior wall, the exterior wall in contact with the tobacco liquid in the liquid chamber, and the interior wall serving as the heat absorbing surface; or the permeating component is substantially cylindrical and defines a plurality of air holes oriented along a direction parallel to an axial direction thereof, each air hole comprising an interior wall functioning as the heat absorbing surface and an exterior wall being in contact with the tobacco liquid in the liquid chamber; or the permeating component is substantially annular, the permeating component comprising an interior wall and an exterior wall, the exterior wall serving as the heat absorbing surface, the at least one heating element attached to the exterior wall, and the interior wall in contact with the tobacco liquid in the liquid chamber. the permeating component is substantially annular, the permeating component including an interior wall and an exterior wall, the exterior wall in contact with the tobacco liquid in the liquid chamber, and the interior wall serving as the heat absorbing surface; or the permeating component is substantially cylindrical and defines a plurality of air holes oriented along a direction parallel to an axial direction thereof, each air hole comprising an interior wall functioning as the heat absorbing surface and an exterior wall being in contact with the tobacco liquid in the liquid chamber; or the permeating component is substantially annular, the permeating component comprising an interior wall and an exterior wall, the exterior wall serving as the heat absorbing surface, the at least one heating element attached to the exterior wall, and the interior wall in contact with the tobacco liquid in the liquid chamber.