The present utility model relates to a portable wireless charging device which comprises a power supply module, the electromagnetic wave energy is output to an electricity-receiving module of a handheld device by the power supply module through frequency conversion and driving power adjustment, By utilizing a power supply microprocessor of the power supply module, voltage power supply with different magnitudes input by an external power supply and an electric power receiving device can be received, the high voltage electric power of commercial power and the minimal voltage supply source of solar energy storage batteries can all be converted into the electric power supply used by the electricity-receiving module. Matched with the convenience of wireless charging, the electric power supply time of the handheld device of the electricity receiving end in operation can be prolonged.