Provided is a method, system, and non-transitory computer-readable record medium for speaker diarization combined with speaker identification. Provided is a speaker diarization method including setting a reference speech in relation to an audio file received as a speaker diarization target speech from a client; performing a speaker identification of identifying a speaker of the reference speech in the audio file using the reference speech; and performing a speaker diarization using clustering on a remaining utterance section unidentified in the audio file.