In a conversation analyzing device, a microphone detects conversation voice of a first analysis subject person who possesses the conversation analyzing device. An acceleration sensor detects movement of the conversation analyzing device. A wireless communication unit (a) detects another conversation analyzing device possessed by another second analysis subject person, and (b) transmits as movement history information a history of movement of the conversation analyzing device to the other conversation analyzing device, and receives movement history information from the other conversation analyzing device. A conversation analyzing unit classifies the conversation voice of the first analysis subject person into any of predetermined plural conversation cases on the basis of (a) the history of movement of this conversation analyzing device, (b) whether the other conversation analyzing device is detected or not, and (c) the received movement history information of the other conversation analyzing device, when detecting the conversation voice of the first analysis subject person.