A cartridge comprising: a liquid storage configured to accommodate an aerosol generating material; an atomizer configured to receive the aerosol generating material from the liquid storage to generate an aerosol, wherein the atomizer comprises a heater configured to heat the aerosol generating material, a lower cap and a liquid delivery element configured to absorb the aerosol generating material and generate the aerosol when heated by the heater; a mouthpiece coupled to an end of the liquid storage and including a discharge hole through which the aerosol is discharged, wherein the lower cap surrounds the heater and encloses another end of the liquid storage, thereby forming a chamber in which the aerosol is generated, and the liquid delivery element is arranged in the chamber of the lower cap; a delivery tube arranged inside the liquid storage and connecting the discharge hole of the mouthpiece with the atomizer, wherein the delivery tube connects the discharge hole of the mouthpiece to the chamber in which the aerosol is generated such that the aerosol generated in the atomizer is delivered to the discharge hole, wherein an end of the delivery tube is connected to the chamber, and an other end of the delivery tube is connected to the discharge hole of the mouthpiece; a placement portion arranged at a top of the delivery tube; and an absorbent element arranged on a delivery path of the aerosol between the delivery tube and the discharge hole, and configured to absorb a liquid, wherein the absorbent element is disposed on the placement portion and configured to absorb a liquid droplet generated inside the delivery tube. a liquid storage configured to accommodate an aerosol generating material; an atomizer configured to receive the aerosol generating material from the liquid storage to generate an aerosol, wherein the atomizer comprises a heater configured to heat the aerosol generating material, a lower cap and a liquid delivery element configured to absorb the aerosol generating material and generate the aerosol when heated by the heater; a mouthpiece coupled to an end of the liquid storage and including a discharge hole through which the aerosol is discharged, wherein the lower cap surrounds the heater and encloses another end of the liquid storage, thereby forming a chamber in which the aerosol is generated, and the liquid delivery element is arranged in the chamber of the lower cap; a delivery tube arranged inside the liquid storage and connecting the discharge hole of the mouthpiece with the atomizer, wherein the delivery tube connects the discharge hole of the mouthpiece to the chamber in which the aerosol is generated such that the aerosol generated in the atomizer is delivered to the discharge hole, wherein an end of the delivery tube is connected to the chamber, and an other end of the delivery tube is connected to the discharge hole of the mouthpiece; a placement portion arranged at a top of the delivery tube; and an absorbent element arranged on a delivery path of the aerosol between the delivery tube and the discharge hole, and configured to absorb a liquid, wherein the absorbent element is disposed on the placement portion and configured to absorb a liquid droplet generated inside the delivery tube.