The present application relates to an electronic cigarette and an assembly method for the electronic cigarette, the electronic cigarette comprises a battery assembly and an atomizer assembly, the battery assembly includes a battery holder and a battery which is removably contained in the battery holder; the battery includes a first electrode and a second electrode, the battery holder is inserted into the atomizer assembly, and the battery assembly is removably connected to the atomizer assembly; one end of the battery holder is provided with an electrical connector, the electrical connector is respectively electrically connected to the second electrode and the atomizer assembly, and the first electrode is abutted against the atomizer assembly and is electrically connected to the atomizer assembly.