The present invention relates to a cotton free e-cigarette vaporizer, comprising: a mouthpiece, an oil cup, a filter component and a heating unit arranged in turn, and the vaporizer further comprises a power connect component electrically connected with the heating unit. The oil of cotton free e-cigarette vaporizer is stored in the oil cup directly instead of being stored by cotton, so burning taste resulted from the burning of the cotton can be avoided during inhalation and thereby improving the taste. Besides, since the cotton free e-cigarette vaporizer is cotton free, it is environment friendly and hygienic, and it has no burning taste and has smooth oil supply.