A stylus comprising a charging circuit, a battery, a power management integrated circuit, and a reset circuit, characterised in that: both a charging port of the charging circuit and the battery are electrically connected to the power management integrated circuit through the reset circuit; and the reset circuit is configured to: disconnect a path between the charging port and the power management integrated circuit and disconnect a path between the battery and the power management integrated circuit when the charging port is powered on, and connect the path between the charging port and the power management integrated circuit and connect the path between the battery and the power management integrated circuit after a specific period of time; wherein the reset circuit comprises a first on/off module and a second on/off module, wherein the first on/off module is electrically connected between the charging port and the power management integrated circuit, and is configured to: disconnect a first path between the charging port and the power management integrated circuit when the charging port is powered on, and connect the first path after a specific period of time; and the second on/off module is electrically connected between the battery and the power management integrated circuit, and is configured to: disconnect a second path between the battery and the power management integrated circuit when the charging port is powered on, and connect the second path after a specific period of time; wherein the reset circuit further comprises a capacitor element and a first resistor element; the first on/off module comprises a first field-effect transistor; and the second on/off module comprises a second field-effect transistor, wherein a drain of the first field-effect transistor is electrically connected to the charging port, a source of the first field-effect transistor is electrically connected to the power management integrated circuit, and a gate of the first field-effect transistor is electrically connected to a first end of the capacitor element; a drain of the second field-effect transistor is electrically connected to a cathode of the battery, a source of the second field-effect transistor is electrically connected to the power management integrated circuit, and a gate of the second field-effect transistor is electrically connected to the first end of the capacitor element; a second end of the capacitor element is electrically connected to the charging port of the charging circuit; and one end of the first resistor element is electrically connected to the gate of the first field-effect transistor, the gate of the second field-effect transistor, and the first end of the capacitor element separately, and both another end of the first resistor element and an anode of the battery are grounded. both a charging port of the charging circuit and the battery are electrically connected to the power management integrated circuit through the reset circuit; and the reset circuit is configured to: disconnect a path between the charging port and the power management integrated circuit and disconnect a path between the battery and the power management integrated circuit when the charging port is powered on, and connect the path between the charging port and the power management integrated circuit and connect the path between the battery and the power management integrated circuit after a specific period of time; wherein the reset circuit comprises a first on/off module and a second on/off module, wherein the first on/off module is electrically connected between the charging port and the power management integrated circuit, and is configured to: disconnect a first path between the charging port and the power management integrated circuit when the charging port is powered on, and connect the first path after a specific period of time; and the second on/off module is electrically connected between the battery and the power management integrated circuit, and is configured to: disconnect a second path between the battery and the power management integrated circuit when the charging port is powered on, and connect the second path after a specific period of time; wherein the reset circuit further comprises a capacitor element and a first resistor element; the first on/off module comprises a first field-effect transistor; and the second on/off module comprises a second field-effect transistor, wherein a drain of the first field-effect transistor is electrically connected to the charging port, a source of the first field-effect transistor is electrically connected to the power management integrated circuit, and a gate of the first field-effect transistor is electrically connected to a first end of the capacitor element; a drain of the second field-effect transistor is electrically connected to a cathode of the battery, a source of the second field-effect transistor is electrically connected to the power management integrated circuit, and a gate of the second field-effect transistor is electrically connected to the first end of the capacitor element; a second end of the capacitor element is electrically connected to the charging port of the charging circuit; and one end of the first resistor element is electrically connected to the gate of the first field-effect transistor, the gate of the second field-effect transistor, and the first end of the capacitor element separately, and both another end of the first resistor element and an anode of the battery are grounded.