A voice call processing method and apparatus for a mobile terminal are provided for improving voice communication quality by switching between matching circuits that are optimized for respective audio output modes of the mobile terminal. The mobile terminal includes at least two matching circuits designated for individual audio output modes, a mode tracking unit for detecting a change from a first audio output mode to a second audio output mode, a control unit for identifying the second audio output mode and the matching circuit designated for the second audio output mode and for outputting a control signal for switching to the matching circuit designated for the second audio output mode, and a switch for switching the signal path between the at least two matching circuits based on the control signal output by the control unit.