the invention relates to the technical field of mobile terminals and discloses a mobile terminal and a method and device for updating the setup information thereof . the method comprises : obtaining a national marine electronics association position message through the global positioning system ; interpreting the nmea message to obtain the current time and the current position information of the mobile terminal ; obtaining a nation to which the current position belongs according to the position information , recognizing the language of the nation ; and updating the setup information of the mobile terminal according to the recognized language and the current time . through the invention , the setup information of the mobile terminal can be updated according to the location of the mobile terminal .