A disposable one-piece electronic cigarette, including a housing (1), a battery assembly (2) and an atomization device (3). The housing (1) is of a hollow structure and open at two ends. The battery assembly (2) and the atomization device (3) are connected and provided inside the housing (1). The atomization device (3) includes an oil absorption element (31), a glass fibre tube (32), an electronic heating element (33) and an oil stopper (34). The electronic heating element (33) further includes a heating fuse (331) and an oil-conducting core (332). The battery assembly (2) includes an electronic core (21), a controller (22) and an LED light (23). A lampshade (5) is provided on a first end of the housing, and a second end thereof is provided with a nozzle cover (4). The beneficial effects thereof are that the battery assembly and atomization device are provided inside the housing to form one piece, avoiding assembling before smoking. A through hole fixes the electronic heating element and enables same to heat the tobacco tar inside the atomization device. A hollow embossment facilitates the flow of the air, making the smoking more smooth. The controller controls the communication of the circuit of the battery assembly, the operation of the electronic heating element, and the LED lights emission of light like smoking flames.Linvention porte sur une cigarette électronique en une seule pièce jetable, laquelle cigarette comprend un boîtier (1), un ensemble pile (2) et un dispositif de pulvérisation (3). Le boîtier (1) est une structure creuse, et est ouvert aux deux extrémités. Lensemble pile (2) et le dispositif de pulvérisation (3) sont connectés et disposés à lintérieur du boîtier (1). Le dispositif de pulvérisation (3) comprend un élément dabsorption dhuile (31), un tube de fibre de verre (32), un élément chauffant électronique (33) et un élément darrêt dhuile (34). Lélément chauffant électronique (33) comprend de plus un allumeur chauffant (331) et une partie centra
