This invention relates to an electronic cigarette, comprising an atomizer and a battery pipe an end of the atomizer is connected to a sucking mouth component, a battery chamber is mounted in the atomizer, and the battery pipe is fixedly inserted in the battery chamber the atomizer also includes an atomizing core component detachably configured between the battery pipe and the sucking mouth component. By implementing the electronic cigarette of the invention, it is convenient in carrying, and the atomizing core component is replaceable, and convenient to use.