The invention relates to a wireless charging device with a wide application range, which comprises a body, a mounting mechanism and a central control mechanism, wherein the mounting mechanism comprises a rotation shaft, a fixing rod and a mounting assembly; the mounting assembly comprises a fixing plate, a mounting unit and a limiting unit; the mounting unit comprises an operating rod, a first connecting rod, a second connecting rod and three adsorption units; each adsorption unit comprises a third connecting rod, a limiting sleeve and a sucker; a working power supply module comprises a working power supply circuit; the working power supply circuit comprises an integrated circuit, a first resistor, a second resistor, a third resistor, a capacitor and a diode; and the model of the integrated circuit is CW317. In the wireless charging device with a wide application range, through the mounting mechanism, the wireless charging device can be mounted in different situations reliably, and the practicality is thus improved; besides, in the working power supply circuit, reference voltage can be stabilized, the stability of power output voltage can be improved, and the device work stability is improved.