WIRELESS CHARGING SYSTEM AND WIRELESS CHARGING PEN BOX

Embodiments of this application provide a wireless charging system and a wireless charging stylus box, which are applied to the field of electronic technologies. The wireless charging system includes a wireless charging device and a stylus, where the wireless charging device is a terminal device or a wireless charging stylus box. The wireless charging device includes an accommodating groove and a transmit coil, and at least one end face of a magnetic core in the transmit coil faces the accommodating groove. The stylus includes a stylus body and a receive coil, and an end face of a magnetic core in the receive coil faces a sidewall of the stylus body, so that after the stylus is placed in the accommodating groove, the end face that is of the magnetic core in the transmit coil and that faces the accommodating groove and an end face that is of the magnetic core in the receive coil and that faces the transmit coil coupled to the receive coil have at least regions partially disposed directly opposite to each other. Therefore, a large part of a magnetic field emitted from or entering the end face that is of the magnetic core in the transmit coil and that faces the accommodating groove is coupled by the receive coil, thereby increasing a coupling coefficient between the transmit coil and the receive coil, and improving wireless charging efficiency.