An improved VoIP (Voice over Internet Protocol) processing method and apparatus reduce the processing delay of a mobile terminal in the mobile communication system. The VoIP processing apparatus includes a Radio Frequency (RF) unit configured to transmit and receive a VoIP packet, and an audio processing unit configured to process audio signals. The apparatus also includes a voice engine configured to determine, when VoIP packet processing is requested, whether a dedicated voice path for processing the VoIP packet exists and control, when the dedicated voice path exists, to process voice signal input/output using a dedicated VoIP processing interface for processing the VoIP packet. The VoIP processing method and apparatus are capable of reducing voice delay by improving the audio paths between VoIP applications and terminal platform.