An atomizer and an electronic cigarette having the same are disclosed. An atomizer includes an atomizing sleeve, with a reservoir formed therein； a heater, disposed inside the atomizing sleeve； as used herein, the heater includes : a quartz glass tube, hollow and with two ends open, a liquid conductive element, received in the quartz glass tube； the liquid conductive element is configured for absorbing tobacco liquid into the quartz glass tube and a heating element, sleeved on the quartz glass tube； the heating element generates infrared radiation to heat the tobacco liquid stored in the quartz glass tube.
