Assembling method of atomization assembly

The invention discloses an assembly method of an atomization assembly, the atomization assembly comprises a hardened cotton atomization core and a first sleeve, the first sleeve is provided with a containing channel matched with the hardened cotton atomization core, the assembly method comprises the steps that an assembly jig comprising an ejector rod and a second sleeve is provided, the second sleeve comprises a limiting part and a sleeve part, the sleeve part is provided with a mounting channel, and the limiting part divides the sleeve part into a first sleeve section and a second sleeve section; the hardened cotton atomizing core is mounted in the mounting channel; the second sleeve section is inserted into the containing channel, so that the limiting part abuts against the first sleeve; an ejector rod is inserted into the mounting channel provided with the hardened cotton atomizing core from the port of the first sleeve section until the lower end face of the ejector rod reaches a preset target position;