A droplet generator is disclosed, which comprises: a main body, an arc convex surface and a nozzle, the main body has a hemispherical concave the arc convex surface is disposed in the main body the nozzle is disposed under the arc convex surface and with a spray outlet connected with a fluid source, and fluid of the fluid source is sprayed out of the spray outlet by the nozzle towards to arc convex surface and generating a plurality of droplets.一種霧滴產生裝置,包含一主體、一圓弧凸球面及一噴嘴;主體具有一半圓弧凹球形;圓弧凸球面設置於主體內;噴嘴設置於圓弧凸球面之下方,其具有一噴出口且連接於一流體源,噴嘴將流體源之流體經由噴出口噴向圓弧凸球面可產生複數霧滴。100‧‧‧霧滴產生裝置10‧‧‧主體11‧‧‧空間12‧‧‧孔洞13‧‧‧內側壁14‧‧‧平板20‧‧‧圓弧凸球面30‧‧‧噴嘴31‧‧‧噴出口32‧‧‧管路F1‧‧‧第一方向F2‧‧‧相反方向
