The present disclosure provides a terminal device includes: a first Type-C interface the first Type-C interface includes a first group of pins and a second group of pins. In a case where grounding impedance value of the first group of pins is within a preset range, a controller controls the first switch unit to connect the first group of pins to the application processor earphone interface, and controls the second switch unit to connect the second group of pins to the application processor fast charge interface; or in a case where the grounding impedance value of the second group of pins is within the preset range, the controller controls the second switch unit to connect the second group of pins to the application processor earphone interface, and controls the first switch unit to connect the first group of pins to the application processor fast charge interface.