The utility model relates to a fog generator uses plus hot type heating device, it includes micarex heating plate and heat accumulation piece, its characterized in that: the micarex heating plate is fixed at heat accumulation block list face, the runner has been equipped with in the heat accumulation piece, be equipped with solution import and smog export on the heat accumulation piece. The utility model discloses simple structure, manufacturability and maintainability are good, are applicable to fog generator.