ROBOT SYSTEM AND ROBOT DIALOGUE METHOD

A robot system includes a work robot, a dialogue robot, and a communication device configured to communicate information between the dialogue robot and the work robot. The work robot includes a progress status reporting module configured to transmit to the dialogue robot, during the work, progress status information including operation process identification information that identifies currently-performed operation process, and a degree of progress of the operation process. The dialogue robot includes an utterance material database storing the operation process identification information, and utterance material data corresponding to the operation process so as to be associated with each other, and a language operation controlling module configured to read from the utterance material database the utterance material data corresponding to the received progress status information, generates robot utterance data based on the read utterance material data and the degree of progress, and outputs the generated robot utterance data to the language operation part.