ULTRASONIC ELECTRONIC CIGARETTE

An ultrasonic electronic cigarette, comprising an atomizer (1) and a battery assembly (2) detachably connected to each other, wherein the atomizer (1) comprises an ultrasonic atomization sheet (3), and the battery assembly (2) comprises a first battery electrode (4) and a second battery electrode (5) for supplying power to the atomizer (1); when the atomizer (1) is connected to the battery assembly (2), a first pole of the ultrasonic atomization sheet (3) is electrically connected to the first battery electrode (4), and a second pole of the ultrasonic atomization sheet (3) is electrically connected to the second battery electrode (5); and the atomizer (1) also comprises a conductive sheet (29) capable of being electrically connected to the two poles of the ultrasonic atomization sheet (3) respectively when the atomizer (1) is disconnected from the battery assembly (2), and being electrically disconnected from either pole of the ultrasonic atomization sheet (3) when the atomizer (1) is connected to the battery assembly (2). The electronic cigarette does not discharge due to unintended touch, and does not discharge at the moment when the atomizer (1) and the battery assembly (2) are connected, thereby preventing electronic components from being burnt out due to excessive voltage caused by the momentary discharge of the ultrasonic atomization sheet (3), achieving a high safety coefficient, a long service life and a low usage cost, and having a good user experience.