An improved atomizing electronic cigarette has a power device (1), a sensor (2), an atomizing core component and a liquid storage component (3). The cigarette also has a containing shell, an auxiliary air inlet (4) is provided on the shell. The atomizing core component includes an electric heater (5) and a liquid permeating component (6). The electric heater (5) has a through hole (51), the liquid storage component (3) has a channel (31), and the sensor (2) is connected with the through hole (51) and the channel (31), and forms an airflow loop by the auxiliary air inlet. The liquid permeating component (6) in the atomizing core component of the cigarette is directly sleeved on the electric heater (5), so that the cigarette can adequately heat gasified smoke with uniform small drops, and the user can accept easily and the smoke can easily enter lung bubble and can be absorbed conveniently. The electric heater (5) and the liquid storage component (3) are connected with the through hole (51) and the channel (31), so that the smoke generated by atomizing process can be cooled under the push of airflow, and the absorbed smoke meets the taste of smoker. The cigarette has detachable split structure, so that the cigarette can exchange and carry conveniently.
