A wireless charging method, applicable to an electronic device, wherein the electronic device is configured to receive by a wireless receiving module, an electromagnetic signal transmitted by a wireless charging apparatus and to convert the electromagnetic signal to a direct current power, and the method comprises: monitoring a present voltage of a battery of the electronic device, after communication between the wireless charging apparatus and the electronic device is established; in response to the present voltage of the battery being greater than a preset fast charging voltage, stepping down the direct current power outputted by the wireless receiving module of the electronic device and rising a current of the direct current power by controlling a voltage and current adjusting module of the electronic device to operate, and providing the direct current power after the stepping down and rising the current to the battery; characterized by, determining an initial voltage value of an adjustable direct current power and sending the initial voltage value to the wireless charging apparatus, to enable the wireless charging apparatus to control a voltage of the adjustable direct current power according to the initial voltage value; wherein the adjustable direct current power is outputted by a voltage conversion module in the wireless charging apparatus by converting an electrical signal inputted to the voltage conversion module; wherein the determining the initial voltage value of the adjustable direct current power comprises: determining the initial voltage value according to the present voltage of the battery, wherein the initial voltage value is N times of the present voltage of the battery plus a loss compensation value, N is a conversion factor of the voltage and current adjusting module. monitoring a present voltage of a battery of the electronic device, after communication between the wireless charging apparatus and the electronic device is established; in response to the present voltage of the battery being greater than a preset fast charging voltage, stepping down the direct current power outputted by the wireless receiving module of the electronic device and rising a current of the direct current power by controlling a voltage and current adjusting module of the electronic device to operate, and providing the direct current power after the stepping down and rising the current to the battery; characterized by, determining an initial voltage value of an adjustable direct current power and sending the initial voltage value to the wireless charging apparatus, to enable the wireless charging apparatus to control a voltage of the adjustable direct current power according to the initial voltage value; wherein the adjustable direct current power is outputted by a voltage conversion module in the wireless charging apparatus by converting an electrical signal inputted to the voltage conversion module; wherein the determining the initial voltage value of the adjustable direct current power comprises: determining the initial voltage value according to the present voltage of the battery, wherein the initial voltage value is N times of the present voltage of the battery plus a loss compensation value, N is a conversion factor of the voltage and current adjusting module.