An electronic cigarette device includes an atomizer and a battery rod, a retaining member is provided on an outer peripheral surface of one end of the atomizer, and an engaging groove is provided on an end surface of one end of the battery rod and configured to accommodate one end of the atomizer, a side wall of the engaging groove is provided with a guide groove extending in a radial direction of the batter rod, a directing groove extending along a circumferential direction of the battery rod and in communication with the guide groove, and a retaining groove for accommodating the retaining member and extending from one end, away from the guide groove, of the directing groove towards the end surface of the battery rod, and a stopper is formed between the guide groove and the retaining groove to prevent the retaining member from moving towards the guide groove.
