The utility model relates to an
electronic cigarette atomizing core and an atomizer, which comprise a tubular support, an atomizing component, first three-dimensional cotton, second three-dimensional cotton, a sleeve and a central rod, the atomizing component is sleeved on the central rod and then integrally arranged inside the tubular support, and the first three-dimensional cotton and the second three-dimensional cotton are arranged outside the atomizing component at intervals. Tobacco
tar is guided out and atomized by the atomizing
assembly after being adsorbed by the first three-dimensional cotton, the first three-dimensional cotton can be communicated with the outside for ventilation through the interval and the second three-dimensional cotton, and due to the fact that the interval exists between the first three-dimensional cotton and the second three-dimensional cotton, the tobacco
tar sucked by the first three-dimensional cotton cannot be conducted to the second three-dimensional cotton; when the first three-dimensional cotton for absorbing oil
smoke oil leaks due to pressure or temperature change, the leaked oil
smoke can flow to the second three-dimensional cotton through the interval to be adsorbed and cannot leak out of the atomizing core, and condensate generated by atomization can also be absorbed by the second three-dimensional cotton and cannot flow to the first three-dimensional cotton to be repeatedly heated and atomized, so that the atomization effect is improved. And the consistency of taste and higher reduction degree of the tobacco
tar are ensured.