Abstract: An electronic cigarette structure includes a casing having an e-liquid chamber and an opening in communication therewith, a cotton body, an airflow duct, an atomizer, and a cover on the opening and sealing the components above in the chamber. The cotton body is disposed in the e-liquid chamber for absorbing the e-liquid. The airflow duct is hollow and combined into the cotton body in the e-liquid chamber. The atomizer is disposed in the through hole of the airflow duct, so as to thermally atomize the e-liquid for producing smoke. The cover has a via hole in communication with the through hole, so that the smoke generated in the through hole is sucked out from the via hole. Thus, the tar separation is avoided, and the e-liquid is prevented from leaking.