A detachable aerosol-generating article comprising: a cartridge , with a reservoir and a path formed therein; the path formed inside the reservoir and an atomizer, disposed inside the path and detachably connected with the cartridge ; wherein the cartridge further comprises a first tube and a second tube ; the second tube is sleeved on the first tube ; the first tube and the second tube are relatively rotatable to each other; and wherein the path is formed inside the first tube ; the first tube is bored with a first liquid conductive hole ; the second tube is bored with a second liquid conductive hole ; the cartridge and the atomizer are configured such that when they are assembled, the first liquid conductive hole is aligned with the second liquid conductive hole , thus allowing tobacco liquid in the reservoir to flow to the atomizer ; the cartridge and the atomizer being further configured such that when they are detached, the first liquid conductive hole and the second liquid conductive hole are misaligned with each other, thus preventing the tobacco liquid in the reservoir from leaking out; wherein the detachable aerosol-generating article further comprises a mouthpiece at a mouth end of the detachable aerosol-generating article and a distal end of the detachable aerosol-generating article is upstream from the mouth end; the mouth piece is provided upstream with a shaft with protrusions ; the detachable aerosol-generating article being characterized in that the atomizer has a connector ; the connector is detachably connected with the shaft of the mouthpiece in the path such that when the mouthpiece is detached from the atomizer , the cartridge is detached from the atomizer . a cartridge , with a reservoir and a path formed therein; the path formed inside the reservoir and an atomizer, disposed inside the path and detachably connected with the cartridge ; wherein the cartridge further comprises a first tube and a second tube ; the second tube is sleeved on the first tube ; the first tube and the second tube are relatively rotatable to each other; and wherein the path is formed inside the first tube ; the first tube is bored with a first liquid conductive hole ; the second tube is bored with a second liquid conductive hole ; the cartridge and the atomizer are configured such that when they are assembled, the first liquid conductive hole is aligned with the second liquid conductive hole , thus allowing tobacco liquid in the reservoir to flow to the atomizer ; the cartridge and the atomizer being further configured such that when they are detached, the first liquid conductive hole and the second liquid conductive hole are misaligned with each other, thus preventing the tobacco liquid in the reservoir from leaking out; wherein the detachable aerosol-generating article further comprises a mouthpiece at a mouth end of the detachable aerosol-generating article and a distal end of the detachable aerosol-generating article is upstream from the mouth end; the mouth piece is provided upstream with a shaft with protrusions ; the detachable aerosol-generating article being characterized in that the atomizer has a connector ; the connector is detachably connected with the shaft of the mouthpiece in the path such that when the mouthpiece is detached from the atomizer , the cartridge is detached from the atomizer . <EOS>