To provide a voice recognition device which more surely recognizes voice.

A feature extracting part 43 generates a feature value indicating an acoustic feature of an input signal. A voiced section detector 44 detects a voiced section of the feature value corresponding to the voiced portion. A voice-recognizing part 45 recognizes the voice based on the the feature value. A voice/non-voice discriminating part 46 discriminates whether it is voice, based on the feature value. A recognition result integrating part 47 controls the output of the voice recognition result, based on the voice discrimination result as to whether the voice based on the the voice recognition. The invention is applicable to a robot for recognizing the user's voice.