Heating assembly and electronic atomization device

The utility model provides a heating assembly body and an electronic atomization device. The heating assembly body comprises a heating sheet, a heating element and a heating element, the electrode piece is provided with a first end and a second end which are oppositely arranged, the electrode piece is provided with an installation groove, the installation groove penetrates through the end face and the peripheral surface of the first end of the electrode piece, the groove distance of the installation groove is larger than or equal to the thickness of the heating piece, and at least part of the heating piece is located in the installation groove; the first end of the electrode piece is inserted and assembled in the electrode sleeve in the axial direction, the electrode sleeve is provided with a first positioning structure, the first end of the electrode piece is provided with a second positioning structure, and the first positioning structure and the second positioning structure are matched with each other to f