Disposable cigarette cartridges, atomizers, and electronic cigarettes. The disposable cigarette cartridge comprises a hollow housing (1), an e-liquid storage device arranged in the housing (1), a mouthpiece (2) connected to the upper extreme of the housing (1), and connected to the lower extreme of the housing (1). an e-liquid guide base 3 and an e-liquid guide body 4 mounted on the liquid guide base 3. The e-liquid guide body 4 extends into the e-liquid storage device. The housing 1 has an air conduit therein which communicates with the mouthpiece 2 at one extreme end and with the heating surface of the e-liquid guide body 4 at the other extreme. The user does not need to fill e-liquid, it becomes convenient for the user to replace and transport, the degree of hygiene is increased, the e-liquid is completely sealed, the amount of smoke is large, the feeling in the mouth of the smoke is improved, respectively. The components of can be replaced independently, the cost of use is low, and the user experience is excellent.
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