Abstract: A multi-channel audio switching method and device for terminal sets correspondence between output audio types and audio output modules, and sets output levels for the different audio output modules. When the portable terminal receives an instruction to output an audio, the instruction carries an output audio type. The portable terminal determines an audio output module corresponding to the output audio type and an output level according to the correspondence, and determines, which audio output module has an output level not higher than the determined output level, and whether there are idle audio output modules among the found out audio output modules; if yes, the portable terminal outputs the audio through the currently highest level idle audio output module among the found out audio output modules; if not, the portable terminal determines and instructs one audio output module to output the audio according to the determined output level.