An electronic cigarette, including an atomization assembly and a battery assembly. The atomization assembly includes a mouthpiece (1), a glass tube (15), a first seal ring (2) sealing the glass tube, an atomizer, and an atomization core. The atomization core comprises a silica seal (9), a silica vent (10), a ceramic core (11), a pedestal (12), a first insulation ring (13), a heating tube (7), and a first joint (14). The battery assembly includes a second joint (16), a second insulation ring (17), a threaded ring (18), a first elastic electrode part (19), a spring (20), a second elastic electrode part (21), a third elastic electrode part (22), a third insulation ring (23), a magnet (24), a silica sleeve (25), a steel tube (26), a compression ring (27), a control plate (28), a battery core (29), a first inner casing (30), a first outer casing (31), a middle casing (32), a first silica gasket (33), a first button (34), a transparent film (35), a second button (36), a second silica gasket (37), a second outer casing (38), and a second inner casing (39).