An electronic cigarette, comprising an atomization assembly and a battery assembly; wherein the atomization assembly comprises an atomizer and an e-liquid tank; the atomizer comprises two or more heating elements; the e-liquid tank comprises a plurality of compartments corresponding to the heating elements in number; and the two or more heating elements are disposed in the plurality of compartments, respectively; characterised in that the battery assembly is disposed on a bottom end of the atomization assembly; the battery assembly comprises a bottom casing, a top part, an electrode pair disposed on the top part, a rotatable fixed seat, an insulation tube, an LED tube, a bolt, a decorative board, a battery, a control panel, a rubber ring, a support, and a battery case; the bottom casing is rotatable with respect to the battery assembly; the electrode pair is disposed on the support to supply power to the atomization assembly; the rubber ring is disposed on the support to insulate the electrode pair; the insulation tube is disposed on a top end of a rotating shaft; the rotatable fixed seat is disposed on the insulation tube to fix the rotating shaft; a switching PCB is disposed on the rotatable fixed seat and is connected to the rotating shaft; the LED tube is disposed on a bottom end of the rotating shaft; the rotating shaft is disposed in the support; the battery is soldered on the control panel and the control panel is fixed on the support; the support is disposed in the battery case; the bottom casing is disposed on a bottom end of the battery case, in contact with the LED tube to connect to and control the rotating shaft; the bolt is in threaded connection to a bottom end of the bottom casing; the LED tube is fixed in the bottom casing; the decorative board is attached to a bottom surface of the bottom casing; and a magnet is disposed on a top end of the support; and the atomization assembly A comprises a bottom part and a joint disposed on the bottom part; the electrode pair is in contact with the joint for electric conduction; the bottom casing of the battery assembly is rotatable thus driving the switching PCB disposed on the top end of the rotating shaft to rotate to power on or power off the electrode pair, so as to switch the working mode of the atomizer to control the two or more heating elements to work alone or simultaneously. the battery assembly is disposed on a bottom end of the atomization assembly; the battery assembly comprises a bottom casing, a top part, an electrode pair disposed on the top part, a rotatable fixed seat, an insulation tube, an LED tube, a bolt, a decorative board, a battery, a control panel, a rubber ring, a support, and a battery case; the bottom casing is rotatable with respect to the battery assembly; the electrode pair is disposed on the support to supply power to the atomization assembly; the rubber ring is disposed on the support to insulate the electrode pair; the insulation tube is disposed on a top end of a rotating shaft; the rotatable fixed seat is disposed on the insulation tube to fix the rotating shaft; a switching PCB is disposed on the rotatable fixed seat and is connected to the rotating shaft; the LED tube is disposed on a bottom end of the rotating shaft; the rotating shaft is disposed in the support; the battery is soldered on the control panel and the control panel is fixed on the support; the support is disposed in the battery case; the bottom casing is disposed on a bottom end of the battery case, in contact with the LED tube to connect to and control the rotating shaft; the bolt is in threaded connection to a bottom end of the bottom casing; the LED tube is fixed in the bottom casing; the decorative board is attached to a bottom surface of the bottom casing; and a magnet is disposed on a top end of the support; and the atomization assembly A comprises a bottom part and a joint disposed on the bottom part; the electrode pair is in contact with the joint for electric conduction; the bottom casing of the battery assembly is rotatable thus driving the switching PCB disposed on the top end of the rotating shaft to rotate to power on or power off the electrode pair, so as to switch the working mode of the atomizer to control the two or more heating elements to work alone or simultaneously.