An electronic cigarette, including a cigarette holder assembly, an atomization assembly, a glass container (9) for accommodating smoke oil, and a gas flow regulator. The cigarette holder assembly includes a mouthpiece (1), a first sealing ring (2), a seat (3) for supporting the mouthpiece, a fixed screw (4), and a pole (5). The atomization assembly includes a pair of heating wires (12), a glass casing (15), a second sealing ring (6), a third sealing ring (14), oil-guiding cotton (13), a limit cover (11), an insulating ring (17), and a fixed ring (16). The glass container includes a first sealing gasket (8) and a second sealing gasket (10) which are respectively disposed at both ends of the glass container. The gas flow regulator includes a control ring (19), a steel ball (20), a spring (21), and a rotary button (22). The first sealing ring of the cigarette holder assembly is sleeved on the mouthpiece, and the mouthpiece is fixed on the seat via the fixed screw.
