The present invention provides a liftable charging apparatus with water level detection. The liftable charging apparatus comprises a control module, a power module, a detective module, an overvoltage protection module and a lifting module. The power module, coupled to the control module, comprises an AC/DC converting unit for converting AC current into DC current. The detective module, coupled to the control module, comprises a water level detection unit and a micro-switch. The water level detection unit is provided to detect a height of outside water level. The overvoltage protection module is coupled to the power module and the detective module. The lifting module is coupled to the control module. Wherein the overvoltage protection module is triggered by the micro-switch and the lifting module is driven when the height of outside water level is greater than a default value.