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 (NMEA) position message through the Global Positioning System (GPS); 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.