Abstract: A wireless charging device includes a casing, a wireless charging module, and an air-flow generator. The casing includes a housing part and a carrier plate disposed in the housing part to divide internal space of the housing part into a first accommodation space and a second accommodation space. The casing has an air inlet, an air outlet, and an opening. The carrier plate has a through hole. The air inlet, the air outlet, the opening, and the through hole are in fluid communication with the first accommodation space and the second accommodation space. The wireless charging module is located in the first accommodation space for charging a mobile device supported by the carrier plate. The air-flow generator is located in the first accommodation space for creating an airflow flowing through the air inlet, the second accommodation space, the through hole, the first accommodation space, and the air outlet.