The present disclosure discloses an electronic cigarette with a rotatable mouthpiece. The electronic cigarette comprises a battery assembly (1) and an atomizing assembly (2). The battery assembly comprises a battery (12) and a casing (11). The atomizing assembly comprises a mouthpiece (21), an outer sleeve (22), and a cartridge (4). The outer sleeve is hinged to casing through a cardinal axis (3). After using the electronic cigarette, the mouthpiece could be rotated and stored in the casing, and kept clean.
