An electronic cigarette vaporizer, which can be connected with a battery component to constitute an electronic cigarette, comprising: a hollow vaporizer housing and a vaporizing device (A) sleeved inside the vaporizer housing ; wherein the vaporizer housing has a mouthpiece end and an opening end , a mouthpiece is arranged in a center of the mouthpiece end , a vapor outlet tube extending inside the vaporizer housing in an inward direction from the mouthpiece to a middle portion of the vaporizer housing is arranged, and the opening end is arranged with a connecting device for connection with the battery component; wherein the vaporizing device (A) is disposed in the vaporizer housing at one side where the opening end is formed, and the vaporizing device (A) comprises a vapor tube sleeve , a throttle lid , a heating unit , a vaporizing base and an electrode lid , which are arranged in turn towards an outer side from an inner side, and the heating unit comprises a liquid guiding strip and a heating coil wound around a middle portion of the liquid guiding strip ; wherein the vapor tube sleeve is cup-shaped and sleeved onto an outer wall of an opening end of the vapor outlet tube , and a vapor outlet hole is formed at a bottom of the vapor tube sleeve ; wherein the throttle lid is provided with a center hole and throttle orifices , an inner wall of an upper portion of the center hole abuts against an outer wall of the vapor tube sleeve , an outer circumferential wall of the throttle lid abuts against an inner wall of the vaporizer housing , and a liquid storage chamber is formed between an upper side of the throttle lid , the outer wall of the vapor outlet tube , and the inner wall of the vaporizer housing , wherein the throttle orifices are in communication with the liquid storage chamber , a lower side of the throttle lid is provided with an annular ring protruding downwards from the inner wall of the center hole , and a bottom of the annular ring is formed in a radial direction with upper grooves which accommodate an upper half of the liquid guiding strip extending transversely and divide a lower portion of the annular ring into two half annular rings ; wherein a concave cavity extending downwards is formed at a center of an upper end of the vaporizing base , and a first air inlet is provided at a bottom of the concave cavity , lower grooves which accommodate a lower half of the liquid guiding strip extending transversely are formed in a radial direction at two sides of the concave cavity on the upper end of the vaporizing base , and half annular grooves for accommodating respective half annular rings are provided at two sides of the grooves and around the concave cavity ; wherein the throttle lid fits tightly over the vaporizing base , the upper grooves and the lower grooves are vertically aligned with each other and joined to seal the liquid guiding strip , the liquid guiding strip extends between the upper grooves and the lower grooves , the half annular rings are sealingly received in the half annular grooves , a vaporizing chamber is defined between the concave cavity and the bottom of the vapor tube sleeve , and the throttle orifices are in communication with two end portions of the liquid guiding strip ; wherein the electrode lid is disposed at a bottom of the vaporizing base and is fixed to an inner wall of the opening end of the vaporizer housing , the electrode lid is arranged with positive and negative electrodes for electrically connecting with two ends of the heating coil , and a second air inlet is provided at a center of the electrode lid . <EOS>