Abstract: An audio cable with switchable transmission direction, includes an audio cable line. One end of the audio cable line is provided with a first interface for connecting with an audio device, and other end of the audio cable line is provided with a second interface for connecting with a terminal device. A switch module is arranged at a middle part of the audio cable line. The switch module is electrically connected with the first interface and the second interface. When the switch module is located at a first position, the audio cable line features a function of inputting audio signals from an audio device to a terminal device; when the switch module is located at a second position, the audio cable line features a function of outputting the audio signals from the terminal device to the audio device.