The present invention discloses an anti-seepage atomizer, including an oil cup and a hollow atomizing core, where a hollow tube is disposed at a center of the oil cup in a manner of extending inward and downward from a top, an upper end of the atomizing core is movably inserted into the hollow tube in a sealed manner from a place below the hollow tube, a lower end of the atomizing core is movably disposed inside an atomizing core base in a sleeved manner, an inner wall of the oil cup, the hollow tube, an upper surface of the upper end of the atomizing core, and an upper surface of an atomizing core base form a sealed oil storage chamber, the middle of the atomizing core is provided with at least one oil hole in communication with an atomizing structure inside the atomizing core.
