A method including searching, on the basis of a voiceprint feature of a speaker, for an identifier of the speaker in a speaker registry, the voiceprint feature of the speaker being a parameter obtained according to a voice signal of the speaker captured by a microphone array; if position information corresponding to the identifier of the speaker in the speaker registry is different from position information of the speaker, updating the speaker registry, the position information of the speaker being a parameter obtained according to the voice signal of the speaker captured by the microphone array; and labeling the voice signal of the speaker with the identifier of the speaker, so as to track the speaker. The present disclosure enables voice tracking of multiple persons.