Embodiments of the present disclosure provide an audio processing apparatus, and an audio crosstalk processing method and apparatus. The audio processing apparatus includes: an audio processing chip, a control switch and an audio output interface. The audio processing chip includes a first power amplifier and a second power amplifier; wherein the first power amplifier is configured to output a left channel signal; the second power amplifier is configured to output a right channel signal; and the control switch is coupled with a common negative terminal of the first power amplifier and the second power amplifier, and is configured to feed back a reference feedback signal to the common negative terminal, and connect a headphone ground signal of the audio output interface with a main board ground, the reference feedback signal is obtained by performing voltage sampling on the headphone ground signal.