Abstract: A speech recognition device includes a speech input section that inputs speech of a continuously uttered phrase set, a first identifying section that identifies a prestored word included in the phrase set, and a second identifying section that identifies an additionally stored word included in the phrase set based on pattern data of feature value sequences of the additionally stored words and feature values of the input speech. The first identifying section includes a cut-out section and a recognition processing section. The cut-out section extracts a prestored word candidate by making comparison between template feature value sequences of the prestored words and a feature value sequence of the speech in a target segment, and cuts out a speech segment where the extracted prestored word is present. The recognition processing section identifies the prestored word based on the feature values in the speech segment cut out by the cut-out section through a recognition process.