A wireless power supply apparatus used for an aquarium includes a first casing and a second casing. The first casing is provided with a wireless power supply unit and a first retaining member. The second casing is provided with a wireless power receiving unit and a second retaining member. The wireless power supply unit and the wireless power receiving unit are electrically with a power device and a load device respectively, and are mounted to the outer side and the inner side of the aquarium through the first retaining member and the second retaining member respectively. Through the wireless power supply unit to transmit electric energy to the wireless power receiving unit instead of wiring, the present invention is waterproof and can be installed easily to enhance the appearance of the aquarium.一種用於水族箱之無線供電設備，其係包含有一第一殼體及一第二殼體，該第一殼體及該第二殼體係分別設有一無線電力供給單元、一第一固定件及一無線電力接收單元、一第二固定件，而該無線電力供給單元及該無線電力接收單元分別與一電源裝置電性連接及一負載裝置電性相接，並分別藉由該第一固定件及該第二固定件固定於一水族箱內外側，藉由該無線電力供給單元傳輸電能至該無線電力接收單元，達到免配線、防水、美觀及易於安裝之優點。
