The invention discloses an atomizing core and an electronic atomizer, and the atomizing core comprises an oil guide part and a heating part; the oil guide piece is provided with an
oil absorption surface and a heating surface which are arranged back to back, and a through hole penetrating through the
oil absorption surface and the heating surface; the
heating element is attached to the heating surface and is arranged around the through hole; wherein the
heating element is used for heating the
aerosol generating substrate on the heating surface to generate
aerosol, and the
aerosol passes through the through hole. According to the
electronic cigarette, the heating piece is arranged on the heating surface of the
tar guide piece to atomize the tobacco
tar, and the through hole is formed in the
tar guide piece to form the
smoke channel, so that the
smoke generated on the heating surface can be conveyed into the
smoke pipeline through the smoke channel. According to the invention, after the
heating element is arranged on the heating surface of the oil guide element, smoke can be conveyed only by forming the through hole in the oil guide element, so that compared with the traditional atomizing core
assembly structure, the atomizing core
assembly structure is simpler, the
assembly efficiency is higher, and certain cost is saved.