Atomization core, aerosol generating device and assembly method of atomization core

The invention discloses an atomization core, an aerosol generating device and an assembly method of the atomization core, the atomization core comprises a breather pipe, a heating mechanism and a fixing mechanism, the breather pipe forms a containing cavity, the heating mechanism is arranged in the containing cavity and is provided with a pin, the fixing mechanism is arranged at one end, close to the heating mechanism, of the breather pipe, and the pin is arranged in the containing cavity. The fixing mechanism comprises a plurality of grooves which are continuously arranged in the circumferential direction of the breather pipe, the pins penetrate through the grooves to extend out of the fixing mechanism, and the pins can be assembled in the grooves when the fixing mechanism is assembled on the breather pipe at any angle by arranging the grooves which are continuously arranged in the circumferential direction of the breather pipe in the fixing mechanism. The assembly difficulty of the atomizing core can be red