Disclosed is an electronic cigarette including a battery connector and a vaporizer connector, wherein the battery connector comprises two recessed L-shaped grooves, and the vaporizer connector comprises two symmetrically-arranged protrusions. After the battery connector has been twist-lock connected with the vaporizer connector, the L-shaped grooves of the battery connector tightly engage with the protrusions of the vaporizer connector, positive and negative electrodes of a battery assembly are electrically connected to two electrodes of a vaporizer electrode assembly.