To provide a mobile communication terminal device for notifying a terminal of an emergency message, the terminal being a terminal of the other party of communication which frequently transmits/receives information with the user of the mobile communication terminal device.

When an emergency notification start key of the operating part of the mobile communication terminal device is depressed, voice data (54) in the occurrence of emergency situations when the start key is depressed are prepared, and map data (55) printed with location information in the occurrence of the emergency situations are prepared by a GPS control part. Then, emergency mail data (28) including text data (53) attached with the voice data (54) and the map data (55) in the occurrence of the emergency situations are prepared, and transmission destination data (52) set on the basis of history information stored in the storage part of the mobile terminal device are set and registered in the prepared emergency mail data (28) so that the emergency mail data can be transmitted to the communication terminal device of the transmission destination data (52) which frequently transmits/receives information with the mobile communication terminal device.