A nebulization structure includes a carrying unit, a vibrating unit, a nebulization unit and a position-limiting unit. The carrying unit has a first carrying portion and a first surrounding portion extended from the outer surrounding peripheral surface of the first carrying portion, and the first carrying portion has a through hole. The vibrating unit includes an annular vibrating sheet disposed on the carrying unit. The nebulization unit is disposed on the first carrying portion, and the nebulization unit has a plurality of micro nozzles communicated with the through hole. The position-limiting unit has a first position-limiting portion disposed on the nebulization unit and a second position-limiting portion extended from the outer surrounding peripheral surface of the first position-limiting portion and along the first surrounding portion. The nebulization unit is positioned between the first carrying portion and the position-limiting unit, and the first position-limiting portion has an opening for exposing the micro nozzles.一種霧化結構,其包括:一承載單元、一振動單元、一霧化單元及一限位單元。承載單元具有一第一承載部及一從第一承載部的外環繞周圍延伸而出的第一環繞部,其中第一承載部具有一貫穿孔。振動單元包括一設置在承載單元上的環形振動片。霧化單元設置在第一承載部上,其中霧化單元具有多個連通於貫穿孔的微噴霧孔。限位單元具有一設置在霧化單元上的第一限位部及一從第一限位部的外環繞周圍延伸而出且沿著第一環繞部進行延伸的第二限位部,其中霧化單元被定位在第一承載部與限位單元之間,且第一限位部具有一用於裸露多個微噴霧孔的開口。2‧‧‧霧化結構21‧‧‧承載單元2100‧‧‧環形凹槽211‧‧‧第一承載部2110‧‧‧貫穿孔2111‧‧‧前表面212‧‧‧第一環繞部2121‧‧‧第一環繞表面213‧‧‧第二承載部214‧‧‧第二環繞部215‧‧‧環繞末端部22‧‧‧振動單元220‧‧‧環形振動片24‧‧‧霧化單元241‧‧‧微噴霧孔242‧‧‧環繞定位部25‧‧‧限位單元251‧‧‧第一限位部2510‧‧‧開口252‧‧‧第二限位部26‧‧‧殼體單元261‧‧‧前殼體2611‧‧‧出口端2612‧‧‧喇叭狀開口262‧‧‧後殼體2620‧‧‧內表面2621‧‧‧入口端
